228908456 has 32 divisors (see below), whose sum is σ = 491624640. Its totient is φ = 97882368.

The previous prime is 228908441. The next prime is 228908467. The reversal of 228908456 is 654809822.

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, 21776 + ... + 30528.

It is an arithmetic number, because the mean of its divisors is an integer number (15363270).

Almost surely, 2^228908456 is an apocalyptic number.

It is an amenable number.

228908456 is an abundant number, since it is smaller than the sum of its proper divisors (262716184).

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

228908456 is a wasteful number, since it uses less digits than its factorization.

228908456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9233 (or 9229 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 44.

The square root of 228908456 is about 15129.7209491781. The cubic root of 228908456 is about 611.7217824928.

The spelling of 228908456 in words is "two hundred twenty-eight million, nine hundred eight thousand, four hundred fifty-six".