228387976 has 32 divisors (see below), whose sum is σ = 458936640. Its totient is φ = 106273728.

The previous prime is 228387959. The next prime is 228387983. The reversal of 228387976 is 679783822.

228387976 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×228387976² = 104322135162753152, which contains 22 as substring.

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, 9966 + ... + 23581.

It is an arithmetic number, because the mean of its divisors is an integer number (14341770).

Almost surely, 2^228387976 is an apocalyptic number.

It is an amenable number.

228387976 is an abundant number, since it is smaller than the sum of its proper divisors (230548664).

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

228387976 is a wasteful number, since it uses less digits than its factorization.

228387976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33613 (or 33609 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 52.

The square root of 228387976 is about 15112.5105789872. The cubic root of 228387976 is about 611.2577970548.

The spelling of 228387976 in words is "two hundred twenty-eight million, three hundred eighty-seven thousand, nine hundred seventy-six".