228926928 has 120 divisors (see below), whose sum is σ = 629879328. Its totient is φ = 71611904.

The previous prime is 228926897. The next prime is 228926941. The reversal of 228926928 is 829629822.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2139451 + ... + 2139557.

Almost surely, 2^228926928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228926928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (314939664).

228926928 is an abundant number, since it is smaller than the sum of its proper divisors (400952400).

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

228926928 is a wasteful number, since it uses less digits than its factorization.

228926928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229 (or 194 counting only the distinct ones).

The product of its digits is 497664, while the sum is 48.

The square root of 228926928 is about 15130.3313909511. The cubic root of 228926928 is about 611.7382365535.

The spelling of 228926928 in words is "two hundred twenty-eight million, nine hundred twenty-six thousand, nine hundred twenty-eight".