228538806 has 16 divisors (see below), whose sum is σ = 457228800. Its totient is φ = 76154408.

The previous prime is 228538759. The next prime is 228538819. The reversal of 228538806 is 608835822.

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, 26455 + ... + 34013.

It is an arithmetic number, because the mean of its divisors is an integer number (28576800).

Almost surely, 2^228538806 is an apocalyptic number.

It is a pronic number, being equal to 15117×15118.

228538806 is an abundant number, since it is smaller than the sum of its proper divisors (228689994).

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

228538806 is a wasteful number, since it uses less digits than its factorization.

228538806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12603.

The product of its (nonzero) digits is 184320, while the sum is 42.

The square root of 228538806 is about 15117.4999917314. The cubic root of 228538806 is about 611.3923279626.

The spelling of 228538806 in words is "two hundred twenty-eight million, five hundred thirty-eight thousand, eight hundred six".