57406228 has 12 divisors (see below), whose sum is σ = 109593792. Its totient is φ = 26093720.

The previous prime is 57406199. The next prime is 57406241. The reversal of 57406228 is 82260475.

It is a junction number, because it is equal to n+sod(n) for n = 57406193 and 57406202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 652300 + ... + 652387.

It is an arithmetic number, because the mean of its divisors is an integer number (9132816).

Almost surely, 2^57406228 is an apocalyptic number.

It is an amenable number.

57406228 is a deficient number, since it is larger than the sum of its proper divisors (52187564).

57406228 is a wasteful number, since it uses less digits than its factorization.

57406228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1304702 (or 1304700 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 57406228 is about 7576.6897785247. The cubic root of 57406228 is about 385.7622006189.

The spelling of 57406228 in words is "fifty-seven million, four hundred six thousand, two hundred twenty-eight".