57744380 has 24 divisors (see below), whose sum is σ = 122014032. Its totient is φ = 22954752.

The previous prime is 57744377. The next prime is 57744389. The reversal of 57744380 is 8344775.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57744389) 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, 5597 + ... + 12116.

It is an arithmetic number, because the mean of its divisors is an integer number (5083918).

Almost surely, 2^57744380 is an apocalyptic number.

It is an amenable number.

57744380 is an abundant number, since it is smaller than the sum of its proper divisors (64269652).

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

57744380 is a wasteful number, since it uses less digits than its factorization.

57744380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17885 (or 17883 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 38.

The square root of 57744380 is about 7598.9722989362. The cubic root of 57744380 is about 386.5181636762.

The spelling of 57744380 in words is "fifty-seven million, seven hundred forty-four thousand, three hundred eighty".