57242466 has 24 divisors (see below), whose sum is σ = 124225920. Its totient is φ = 19049976.

The previous prime is 57242447. The next prime is 57242473. The reversal of 57242466 is 66424275.

57242466 is a `hidden beast` number, since 572 + 4 + 24 + 66 = 666.

It is a super-2 number, since 2×57242466² = 6553399827522312, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 57242466.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10731 + ... + 15153.

It is an arithmetic number, because the mean of its divisors is an integer number (5176080).

Almost surely, 2^57242466 is an apocalyptic number.

57242466 is an abundant number, since it is smaller than the sum of its proper divisors (66983454).

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

57242466 is a wasteful number, since it uses less digits than its factorization.

57242466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5150 (or 5147 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

The square root of 57242466 is about 7565.8750980967. The cubic root of 57242466 is about 385.3950316537.

The spelling of 57242466 in words is "fifty-seven million, two hundred forty-two thousand, four hundred sixty-six".