228981475 has 6 divisors (see below), whose sum is σ = 283937060. Its totient is φ = 183185160.

The previous prime is 228981457. The next prime is 228981481. The reversal of 228981475 is 574189822.

It is not a de Polignac number, because 228981475 - 2¹¹ = 228979427 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4579605 + ... + 4579654.

Almost surely, 2^228981475 is an apocalyptic number.

228981475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

228981475 is a deficient number, since it is larger than the sum of its proper divisors (54955585).

228981475 is an equidigital number, since it uses as much as digits as its factorization.

228981475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9159269 (or 9159264 counting only the distinct ones).

The product of its digits is 322560, while the sum is 46.

The square root of 228981475 is about 15132.1338548137. The cubic root of 228981475 is about 611.7868195023.

The spelling of 228981475 in words is "two hundred twenty-eight million, nine hundred eighty-one thousand, four hundred seventy-five".