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1274140 = 225719479
BaseRepresentation
bin100110111000100011100
32101201210101
410313010130
5311233030
643150444
713554460
oct4670434
92351711
101274140
117a030a
12515424
13357c3a
142524a0
151a27ca
hex13711c

1274140 has 48 divisors (see below), whose sum is σ = 3225600. Its totient is φ = 412992.

The previous prime is 1274137. The next prime is 1274149. The reversal of 1274140 is 414721.

1274140 = T7 + T8 + ... + T196.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1274149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2421 + ... + 2899.

It is an arithmetic number, because the mean of its divisors is an integer number (67200).

21274140 is an apocalyptic number.

1274140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1274140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1612800).

1274140 is an abundant number, since it is smaller than the sum of its proper divisors (1951460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1274140 is a wasteful number, since it uses less digits than its factorization.

1274140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514 (or 512 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 1274140 is about 1128.7781004254. The cubic root of 1274140 is about 108.4107585896.

Adding to 1274140 its reverse (414721), we get a palindrome (1688861).

The spelling of 1274140 in words is "one million, two hundred seventy-four thousand, one hundred forty".

Divisors: 1 2 4 5 7 10 14 19 20 28 35 38 70 76 95 133 140 190 266 380 479 532 665 958 1330 1916 2395 2660 3353 4790 6706 9101 9580 13412 16765 18202 33530 36404 45505 63707 67060 91010 127414 182020 254828 318535 637070 1274140