228113664 has 36 divisors (see below), whose sum is σ = 607117056. Its totient is φ = 76037632.

The previous prime is 228113659. The next prime is 228113707. The reversal of 228113664 is 466311822.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147744 + ... + 149279.

Almost surely, 2^228113664 is an apocalyptic number.

228113664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

228113664 is an abundant number, since it is smaller than the sum of its proper divisors (379003392).

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

228113664 is an equidigital number, since it uses as much as digits as its factorization.

228113664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297042 (or 297028 counting only the distinct ones).

The product of its digits is 13824, while the sum is 33.

The square root of 228113664 is about 15103.4321927170. The cubic root of 228113664 is about 611.0129760460.

The spelling of 228113664 in words is "two hundred twenty-eight million, one hundred thirteen thousand, six hundred sixty-four".