57274638 has 8 divisors (see below), whose sum is σ = 114549288. Its totient is φ = 19091544.

The previous prime is 57274627. The next prime is 57274643. The reversal of 57274638 is 83647275.

It is a sphenic number, since it is the product of 3 distinct primes.

57274638 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 57274638.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4772881 + ... + 4772892.

It is an arithmetic number, because the mean of its divisors is an integer number (14318661).

Almost surely, 2^57274638 is an apocalyptic number.

57274638 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

57274638 is a wasteful number, since it uses less digits than its factorization.

57274638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9545778.

The product of its digits is 282240, while the sum is 42.

The square root of 57274638 is about 7568.0009249471. Note that the first 3 decimals coincide. The cubic root of 57274638 is about 385.4672193591.

The spelling of 57274638 in words is "fifty-seven million, two hundred seventy-four thousand, six hundred thirty-eight".