228491204 has 18 divisors (see below), whose sum is σ = 413181342. Its totient is φ = 110558400.

The previous prime is 228491201. The next prime is 228491231. The reversal of 228491204 is 402194822.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 147671104 + 80820100 = 12152^2 + 8990^2 .

It is not an unprimeable number, because it can be changed into a prime (228491201) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25877 + ... + 33564.

It is an arithmetic number, because the mean of its divisors is an integer number (22954519).

Almost surely, 2^228491204 is an apocalyptic number.

It is an amenable number.

228491204 is a deficient number, since it is larger than the sum of its proper divisors (184690138).

228491204 is a wasteful number, since it uses less digits than its factorization.

228491204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59507 (or 59474 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 228491204 is about 15115.9255092105. The cubic root of 228491204 is about 611.3498763560.

The spelling of 228491204 in words is "two hundred twenty-eight million, four hundred ninety-one thousand, two hundred four".