57228412 has 12 divisors (see below), whose sum is σ = 100222920. Its totient is φ = 28593296.

The previous prime is 57228403. The next prime is 57228419. The reversal of 57228412 is 21482275.

It is a happy number.

It is a super-2 number, since 2×57228412² = 6550182280083488, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57228419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2058 + ... + 10894.

It is an arithmetic number, because the mean of its divisors is an integer number (8351910).

Almost surely, 2^57228412 is an apocalyptic number.

It is an amenable number.

57228412 is a deficient number, since it is larger than the sum of its proper divisors (42994508).

57228412 is a wasteful number, since it uses less digits than its factorization.

57228412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10460 (or 10458 counting only the distinct ones).

The product of its digits is 8960, while the sum is 31.

The square root of 57228412 is about 7564.9462655065. The cubic root of 57228412 is about 385.3634887248.

The spelling of 57228412 in words is "fifty-seven million, two hundred twenty-eight thousand, four hundred twelve".