228279325 has 12 divisors (see below), whose sum is σ = 285299200. Its totient is φ = 181182960.

The previous prime is 228279277. The next prime is 228279343. The reversal of 228279325 is 523972822.

228279325 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 228279325 - 2⁷ = 228279197 is a prime.

It is a super-2 number, since 2×228279325² = 104222900444911250, which contains 22 as substring.

It is a congruent 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, 32775 + ... + 39124.

Almost surely, 2^228279325 is an apocalyptic number.

228279325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

228279325 is a deficient number, since it is larger than the sum of its proper divisors (57019875).

228279325 is a wasteful number, since it uses less digits than its factorization.

228279325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72036 (or 72031 counting only the distinct ones).

The product of its digits is 120960, while the sum is 40.

The square root of 228279325 is about 15108.9154144167. The cubic root of 228279325 is about 611.1608504664.

The spelling of 228279325 in words is "two hundred twenty-eight million, two hundred seventy-nine thousand, three hundred twenty-five".