228976578 has 32 divisors (see below), whose sum is σ = 509443200. Its totient is φ = 76234608.

The previous prime is 228976577. The next prime is 228976597. The reversal of 228976578 is 875679822.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (228976577) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55408 + ... + 59396.

It is an arithmetic number, because the mean of its divisors is an integer number (15920100).

Almost surely, 2^228976578 is an apocalyptic number.

228976578 is an abundant number, since it is smaller than the sum of its proper divisors (280466622).

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

228976578 is a wasteful number, since it uses less digits than its factorization.

228976578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5063 (or 5057 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 54.

The square root of 228976578 is about 15131.9720459694. The cubic root of 228976578 is about 611.7824582449.

The spelling of 228976578 in words is "two hundred twenty-eight million, nine hundred seventy-six thousand, five hundred seventy-eight".