57074378 has 16 divisors (see below), whose sum is σ = 90727560. Its totient is φ = 26880000.

The previous prime is 57074377. The next prime is 57074399. The reversal of 57074378 is 87347075.

It can be written as a sum of positive squares in 4 ways, for example, as 28697449 + 28376929 = 5357^2 + 5327^2 .

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (57074371) 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, 9623 + ... + 14378.

Almost surely, 2^57074378 is an apocalyptic number.

57074378 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

57074378 is a deficient number, since it is larger than the sum of its proper divisors (33653182).

57074378 is a wasteful number, since it uses less digits than its factorization.

57074378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24073.

The product of its (nonzero) digits is 164640, while the sum is 41.

The square root of 57074378 is about 7554.7586328089. The cubic root of 57074378 is about 385.0174344160.

The spelling of 57074378 in words is "fifty-seven million, seventy-four thousand, three hundred seventy-eight".