228899238 has 16 divisors (see below), whose sum is σ = 464070576. Its totient is φ = 75254400.

The previous prime is 228899219. The next prime is 228899263. The reversal of 228899238 is 832998822.

It is a super-2 number, since 2×228899238² = 104789722313961288, 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 7 ways as a sum of consecutive naturals, for example, 260863 + ... + 261738.

It is an arithmetic number, because the mean of its divisors is an integer number (29004411).

Almost surely, 2^228899238 is an apocalyptic number.

228899238 is an abundant number, since it is smaller than the sum of its proper divisors (235171338).

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

228899238 is a wasteful number, since it uses less digits than its factorization.

228899238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522679.

The product of its digits is 995328, while the sum is 51.

The square root of 228899238 is about 15129.4163139230. The cubic root of 228899238 is about 611.7135711651.

The spelling of 228899238 in words is "two hundred twenty-eight million, eight hundred ninety-nine thousand, two hundred thirty-eight".