228932825 has 12 divisors (see below), whose sum is σ = 309684048. Its totient is φ = 166496400.

The previous prime is 228932797. The next prime is 228932909. The reversal of 228932825 is 528239822.

It is a de Polignac number, because none of the positive numbers 2^k-228932825 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 415967 + ... + 416516.

It is an arithmetic number, because the mean of its divisors is an integer number (25807004).

Almost surely, 2^228932825 is an apocalyptic number.

228932825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

228932825 is a deficient number, since it is larger than the sum of its proper divisors (80751223).

228932825 is a wasteful number, since it uses less digits than its factorization.

228932825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 832504 (or 832499 counting only the distinct ones).

The product of its digits is 138240, while the sum is 41.

The square root of 228932825 is about 15130.5262631542. The cubic root of 228932825 is about 611.7434891602.

The spelling of 228932825 in words is "two hundred twenty-eight million, nine hundred thirty-two thousand, eight hundred twenty-five".