228571556 has 24 divisors (see below), whose sum is σ = 422983680. Its totient is φ = 107899200.

The previous prime is 228571543. The next prime is 228571561. The reversal of 228571556 is 655175822.

It is a super-2 number, since 2×228571556² = 104489912424522272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17396 + ... + 27563.

It is an arithmetic number, because the mean of its divisors is an integer number (17624320).

Almost surely, 2^228571556 is an apocalyptic number.

It is an amenable number.

228571556 is a deficient number, since it is larger than the sum of its proper divisors (194412124).

228571556 is a wasteful number, since it uses less digits than its factorization.

228571556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45035 (or 45033 counting only the distinct ones).

The product of its digits is 168000, while the sum is 41.

The square root of 228571556 is about 15118.5831346724. The cubic root of 228571556 is about 611.4215310882.

The spelling of 228571556 in words is "two hundred twenty-eight million, five hundred seventy-one thousand, five hundred fifty-six".