228812634 has 16 divisors (see below), whose sum is σ = 508472640. Its totient is φ = 76270860.

The previous prime is 228812603. The next prime is 228812641. The reversal of 228812634 is 436218822.

228812634 is a `hidden beast` number, since 2 + 2 + 8 + 8 + 12 + 634 = 666.

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, 2118582 + ... + 2118689.

It is an arithmetic number, because the mean of its divisors is an integer number (31779540).

Almost surely, 2^228812634 is an apocalyptic number.

228812634 is an abundant number, since it is smaller than the sum of its proper divisors (279660006).

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

228812634 is a wasteful number, since it uses less digits than its factorization.

228812634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4237282 (or 4237276 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The square root of 228812634 is about 15126.5539367035. The cubic root of 228812634 is about 611.6364141807.

The spelling of 228812634 in words is "two hundred twenty-eight million, eight hundred twelve thousand, six hundred thirty-four".