228659904 has 168 divisors, whose sum is σ = 722741760. Its totient is φ = 68544000.

The previous prime is 228659833. The next prime is 228659917. The reversal of 228659904 is 409956822.

It is a self number, because there is not a number n which added to its sum of digits gives 228659904.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 956617 + ... + 956855.

Almost surely, 2^228659904 is an apocalyptic number.

228659904 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228659904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (361370880).

228659904 is an abundant number, since it is smaller than the sum of its proper divisors (494081856).

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

228659904 is a wasteful number, since it uses less digits than its factorization.

228659904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419 (or 406 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 228659904 is about 15121.5046870343. The cubic root of 228659904 is about 611.5002969565.

The spelling of 228659904 in words is "two hundred twenty-eight million, six hundred fifty-nine thousand, nine hundred four".