57378026 has 16 divisors (see below), whose sum is σ = 91311624. Its totient is φ = 26947584.

The previous prime is 57378019. The next prime is 57378029. The reversal of 57378026 is 62087375.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 50623225 + 6754801 = 7115^2 + 2599^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (57378029) 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, 19466 + ... + 22218.

Almost surely, 2^57378026 is an apocalyptic number.

57378026 is a deficient number, since it is larger than the sum of its proper divisors (33933598).

57378026 is a wasteful number, since it uses less digits than its factorization.

57378026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3385.

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 57378026 is about 7574.8284469023. The cubic root of 57378026 is about 385.6990190443.

The spelling of 57378026 in words is "fifty-seven million, three hundred seventy-eight thousand, twenty-six".