57373738 has 4 divisors (see below), whose sum is σ = 86060610. Its totient is φ = 28686868.

The previous prime is 57373651. The next prime is 57373747. The reversal of 57373738 is 83737375.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 57350329 + 23409 = 7573^2 + 153^2 .

It is a junction number, because it is equal to n+sod(n) for n = 57373694 and 57373703.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14343433 + ... + 14343436.

Almost surely, 2^57373738 is an apocalyptic number.

57373738 is a deficient number, since it is larger than the sum of its proper divisors (28686872).

57373738 is a wasteful number, since it uses less digits than its factorization.

57373738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28686871.

The product of its digits is 370440, while the sum is 43.

The square root of 57373738 is about 7574.5453989002. The cubic root of 57373738 is about 385.6894107284.

The spelling of 57373738 in words is "fifty-seven million, three hundred seventy-three thousand, seven hundred thirty-eight".