57421874 has 16 divisors (see below), whose sum is σ = 88235136. Its totient is φ = 28014000.

The previous prime is 57421867. The next prime is 57421879. The reversal of 57421874 is 47812475.

It is a super-2 number, since 2×57421874² = 6594543227343752, which contains 22 as substring.

It is a Curzon number.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (57421879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38849 + ... + 40299.

It is an arithmetic number, because the mean of its divisors is an integer number (5514696).

Almost surely, 2^57421874 is an apocalyptic number.

57421874 is a deficient number, since it is larger than the sum of its proper divisors (30813262).

57421874 is a wasteful number, since it uses less digits than its factorization.

57421874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1921.

The product of its digits is 62720, while the sum is 38.

The square root of 57421874 is about 7577.7222171309. The cubic root of 57421874 is about 385.7972437803.

The spelling of 57421874 in words is "fifty-seven million, four hundred twenty-one thousand, eight hundred seventy-four".