57770228 has 24 divisors (see below), whose sum is σ = 102648000. Its totient is φ = 28445760.

The previous prime is 57770221. The next prime is 57770231. The reversal of 57770228 is 82207775.

It is a junction number, because it is equal to n+sod(n) for n = 57770191 and 57770200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57770221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115523 + ... + 116021.

It is an arithmetic number, because the mean of its divisors is an integer number (4277000).

Almost surely, 2^57770228 is an apocalyptic number.

It is an amenable number.

57770228 is a deficient number, since it is larger than the sum of its proper divisors (44877772).

57770228 is a wasteful number, since it uses less digits than its factorization.

57770228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 887 (or 885 counting only the distinct ones).

The product of its (nonzero) digits is 54880, while the sum is 38.

The square root of 57770228 is about 7600.6728649508. The cubic root of 57770228 is about 386.5758271877.

The spelling of 57770228 in words is "fifty-seven million, seven hundred seventy thousand, two hundred twenty-eight".