228431624 has 16 divisors (see below), whose sum is σ = 428525520. Its totient is φ = 114158160.

The previous prime is 228431617. The next prime is 228431629. The reversal of 228431624 is 426134822.

228431624 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (228431629) 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, 12947 + ... + 24989.

It is an arithmetic number, because the mean of its divisors is an integer number (26782845).

Almost surely, 2^228431624 is an apocalyptic number.

It is an amenable number.

228431624 is a deficient number, since it is larger than the sum of its proper divisors (200093896).

228431624 is a wasteful number, since it uses less digits than its factorization.

228431624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14420 (or 14416 counting only the distinct ones).

The product of its digits is 18432, while the sum is 32.

The square root of 228431624 is about 15113.9546115502. The cubic root of 228431624 is about 611.2967344241.

The spelling of 228431624 in words is "two hundred twenty-eight million, four hundred thirty-one thousand, six hundred twenty-four".