228572120 has 32 divisors (see below), whose sum is σ = 587757600. Its totient is φ = 78367488.

The previous prime is 228572111. The next prime is 228572131. The reversal of 228572120 is 21275822.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 407885 + ... + 408444.

It is an arithmetic number, because the mean of its divisors is an integer number (18367425).

Almost surely, 2^228572120 is an apocalyptic number.

228572120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228572120 is an abundant number, since it is smaller than the sum of its proper divisors (359185480).

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

228572120 is a wasteful number, since it uses less digits than its factorization.

228572120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816347 (or 816343 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 228572120 is about 15118.6017872024. The cubic root of 228572120 is about 611.4220339817.

The spelling of 228572120 in words is "two hundred twenty-eight million, five hundred seventy-two thousand, one hundred twenty".