229855988 has 12 divisors (see below), whose sum is σ = 413119812. Its totient is φ = 111821760.

The previous prime is 229855987. The next prime is 229855993. The reversal of 229855988 is 889558922.

It can be written as a sum of positive squares in 2 ways, for example, as 86527204 + 143328784 = 9302^2 + 11972^2 .

It is a super-2 number, since 2×229855988² = 105667550438912288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229855981) 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, 776393 + ... + 776688.

It is an arithmetic number, because the mean of its divisors is an integer number (34426651).

Almost surely, 2^229855988 is an apocalyptic number.

It is an amenable number.

229855988 is a deficient number, since it is larger than the sum of its proper divisors (183263824).

229855988 is a wasteful number, since it uses less digits than its factorization.

229855988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1553122 (or 1553120 counting only the distinct ones).

The product of its digits is 4147200, while the sum is 56.

The square root of 229855988 is about 15161.0022096166. The cubic root of 229855988 is about 612.5646638935.

The spelling of 229855988 in words is "two hundred twenty-nine million, eight hundred fifty-five thousand, nine hundred eighty-eight".