228904902 has 24 divisors (see below), whose sum is σ = 497063736. Its totient is φ = 76131936.

The previous prime is 228904883. The next prime is 228904909. The reversal of 228904902 is 209409822.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228904909) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5688 + ... + 22139.

It is an arithmetic number, because the mean of its divisors is an integer number (20710989).

Almost surely, 2^228904902 is an apocalyptic number.

228904902 is an abundant number, since it is smaller than the sum of its proper divisors (268158834).

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

228904902 is a wasteful number, since it uses less digits than its factorization.

228904902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28292 (or 28289 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 228904902 is about 15129.6034977788. The cubic root of 228904902 is about 611.7186166414.

The spelling of 228904902 in words is "two hundred twenty-eight million, nine hundred four thousand, nine hundred two".