228488836 has 12 divisors (see below), whose sum is σ = 402309712. Its totient is φ = 113543208.

The previous prime is 228488809. The next prime is 228488837. The reversal of 228488836 is 638884822.

It is a self number, because there is not a number n which added to its sum of digits gives 228488836.

It is not an unprimeable number, because it can be changed into a prime (228488837) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174570 + ... + 175873.

Almost surely, 2^228488836 is an apocalyptic number.

It is an amenable number.

228488836 is a deficient number, since it is larger than the sum of its proper divisors (173820876).

228488836 is a wasteful number, since it uses less digits than its factorization.

228488836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350610 (or 350608 counting only the distinct ones).

The product of its digits is 1179648, while the sum is 49.

The square root of 228488836 is about 15115.8471810216. The cubic root of 228488836 is about 611.3477644125.

It can be divided in two parts, 22848 and 8836, that added together give a square (31684 = 178²).

The spelling of 228488836 in words is "two hundred twenty-eight million, four hundred eighty-eight thousand, eight hundred thirty-six".