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1386140 = 22579901
BaseRepresentation
bin101010010011010011100
32121102102112
411102122130
5323324030
645413152
714532140
oct5223234
92542375
101386140
11867478
1256a1b8
13396c02
14281220
151c5a95
hex15269c

1386140 has 24 divisors (see below), whose sum is σ = 3327072. Its totient is φ = 475200.

The previous prime is 1386139. The next prime is 1386149. The reversal of 1386140 is 416831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1386149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4811 + ... + 5090.

It is an arithmetic number, because the mean of its divisors is an integer number (138628).

21386140 is an apocalyptic number.

1386140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1386140 is an abundant number, since it is smaller than the sum of its proper divisors (1940932).

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

1386140 is a wasteful number, since it uses less digits than its factorization.

1386140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9917 (or 9915 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 1386140 is about 1177.3444695585. The cubic root of 1386140 is about 111.4985018601.

The spelling of 1386140 in words is "one million, three hundred eighty-six thousand, one hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 9901 19802 39604 49505 69307 99010 138614 198020 277228 346535 693070 1386140