557430228 has 48 divisors (see below), whose sum is σ = 1495032000. Its totient is φ = 179401824.

The previous prime is 557430163. The next prime is 557430233. The reversal of 557430228 is 822034755.

557430228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 557430192 and 557430201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85858 + ... + 92121.

It is an arithmetic number, because the mean of its divisors is an integer number (31146500).

Almost surely, 2^557430228 is an apocalyptic number.

557430228 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is an amenable number.

557430228 is an abundant number, since it is smaller than the sum of its proper divisors (937601772).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

557430228 is a wasteful number, since it uses less digits than its factorization.

557430228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178021 (or 178013 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The square root of 557430228 is about 23609.9603557482. The cubic root of 557430228 is about 822.9943212828.

The spelling of 557430228 in words is "five hundred fifty-seven million, four hundred thirty thousand, two hundred twenty-eight".