228913924 has 6 divisors (see below), whose sum is σ = 400599374. Its totient is φ = 114456960.

The previous prime is 228913921. The next prime is 228913939. The reversal of 228913924 is 429319822.

It can be written as a sum of positive squares in only one way, i.e., 228553924 + 360000 = 15118^2 + 600^2 .

It is not an unprimeable number, because it can be changed into a prime (228913921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28614237 + ... + 28614244.

Almost surely, 2^228913924 is an apocalyptic number.

It is an amenable number.

228913924 is a deficient number, since it is larger than the sum of its proper divisors (171685450).

228913924 is a wasteful number, since it uses less digits than its factorization.

228913924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57228485 (or 57228483 counting only the distinct ones).

The product of its digits is 62208, while the sum is 40.

The square root of 228913924 is about 15129.9016520267. The cubic root of 228913924 is about 611.7266532435.

The spelling of 228913924 in words is "two hundred twenty-eight million, nine hundred thirteen thousand, nine hundred twenty-four".