57209464 has 32 divisors (see below), whose sum is σ = 120546720. Its totient is φ = 25255296.

The previous prime is 57209461. The next prime is 57209483. The reversal of 57209464 is 46490275.

It is a Smith number, since the sum of its digits (37) 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 (57209461) 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, 9567 + ... + 14350.

It is an arithmetic number, because the mean of its divisors is an integer number (3767085).

Almost surely, 2^57209464 is an apocalyptic number.

57209464 is the 4784-th heptagonal number.

It is an amenable number.

57209464 is an abundant number, since it is smaller than the sum of its proper divisors (63337256).

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

57209464 is a wasteful number, since it uses less digits than its factorization.

57209464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23959 (or 23955 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 57209464 is about 7563.6938066001. The cubic root of 57209464 is about 385.3209534808.

The spelling of 57209464 in words is "fifty-seven million, two hundred nine thousand, four hundred sixty-four".