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1382444 = 22797509
BaseRepresentation
bin101010001100000101100
32121020100122
411101200230
5323214234
645344112
714515310
oct5214054
92536318
101382444
11864718
12568038
1339531b
1427db40
151c492e
hex15182c

1382444 has 24 divisors (see below), whose sum is σ = 2798880. Its totient is φ = 585216.

The previous prime is 1382419. The next prime is 1382449. The reversal of 1382444 is 4442831.

It is a super-2 number, since 2×13824442 = 3822302826272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1382449) 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, 2462 + ... + 2970.

It is an arithmetic number, because the mean of its divisors is an integer number (116620).

21382444 is an apocalyptic number.

1382444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1382444 is an abundant number, since it is smaller than the sum of its proper divisors (1416436).

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

1382444 is a wasteful number, since it uses less digits than its factorization.

1382444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617 (or 615 counting only the distinct ones).

The product of its digits is 3072, while the sum is 26.

The square root of 1382444 is about 1175.7737877670. The cubic root of 1382444 is about 111.3993138802.

The spelling of 1382444 in words is "one million, three hundred eighty-two thousand, four hundred forty-four".

Divisors: 1 2 4 7 14 28 97 194 388 509 679 1018 1358 2036 2716 3563 7126 14252 49373 98746 197492 345611 691222 1382444