228531616 has 24 divisors (see below), whose sum is σ = 452533284. Its totient is φ = 113602560.

The previous prime is 228531607. The next prime is 228531617. The reversal of 228531616 is 616135822.

It can be written as a sum of positive squares in 2 ways, for example, as 218921616 + 9610000 = 14796^2 + 3100^2 .

It is not an unprimeable number, because it can be changed into a prime (228531617) 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, 15105 + ... + 26176.

Almost surely, 2^228531616 is an apocalyptic number.

It is an amenable number.

228531616 is a deficient number, since it is larger than the sum of its proper divisors (224001668).

228531616 is a wasteful number, since it uses less digits than its factorization.

228531616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41464 (or 41456 counting only the distinct ones).

The product of its digits is 17280, while the sum is 34.

The square root of 228531616 is about 15117.2621859912. The cubic root of 228531616 is about 611.3859162770.

The spelling of 228531616 in words is "two hundred twenty-eight million, five hundred thirty-one thousand, six hundred sixteen".