228791164 has 24 divisors (see below), whose sum is σ = 458006528. Its totient is φ = 97962480.

The previous prime is 228791153. The next prime is 228791209. The reversal of 228791164 is 461197822.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33349 + ... + 39619.

Almost surely, 2^228791164 is an apocalyptic number.

It is an amenable number.

228791164 is an abundant number, since it is smaller than the sum of its proper divisors (229215364).

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

228791164 is a wasteful number, since it uses less digits than its factorization.

228791164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7585 (or 7583 counting only the distinct ones).

The product of its digits is 48384, while the sum is 40.

The square root of 228791164 is about 15125.8442409011. The cubic root of 228791164 is about 611.6172831792.

The spelling of 228791164 in words is "two hundred twenty-eight million, seven hundred ninety-one thousand, one hundred sixty-four".