57279244 has 24 divisors (see below), whose sum is σ = 111149136. Its totient is φ = 25608000.

The previous prime is 57279217. The next prime is 57279251. The reversal of 57279244 is 44297275.

It is a junction number, because it is equal to n+sod(n) for n = 57279197 and 57279206.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7987 + ... + 13354.

It is an arithmetic number, because the mean of its divisors is an integer number (4631214).

Almost surely, 2^57279244 is an apocalyptic number.

It is an amenable number.

57279244 is a deficient number, since it is larger than the sum of its proper divisors (53869892).

57279244 is a wasteful number, since it uses less digits than its factorization.

57279244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21417 (or 21415 counting only the distinct ones).

The product of its digits is 141120, while the sum is 40.

The square root of 57279244 is about 7568.3052264031. The cubic root of 57279244 is about 385.4775521142.

The spelling of 57279244 in words is "fifty-seven million, two hundred seventy-nine thousand, two hundred forty-four".