57144764 has 24 divisors (see below), whose sum is σ = 103506480. Its totient is φ = 27586944.

The previous prime is 57144727. The next prime is 57144767. The reversal of 57144764 is 46744175.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57144767) 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, 13442 + ... + 17174.

It is an arithmetic number, because the mean of its divisors is an integer number (4312770).

Almost surely, 2^57144764 is an apocalyptic number.

It is an amenable number.

57144764 is a deficient number, since it is larger than the sum of its proper divisors (46361716).

57144764 is a wasteful number, since it uses less digits than its factorization.

57144764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3869 (or 3867 counting only the distinct ones).

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

The square root of 57144764 is about 7559.4155858770. The cubic root of 57144764 is about 385.1756414526.

The spelling of 57144764 in words is "fifty-seven million, one hundred forty-four thousand, seven hundred sixty-four".