228420100904 has 16 divisors (see below), whose sum is σ = 432216935700. Its totient is φ = 113162251392.

The previous prime is 228420100901. The next prime is 228420100933. The reversal of 228420100904 is 409001024822.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 227691208900 + 728892004 = 477170^2 + 26998^2 .

It is not an unprimeable number, because it can be changed into a prime (228420100901) 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, 130973957 + ... + 130975700.

Almost surely, 2^228420100904 is an apocalyptic number.

It is an amenable number.

228420100904 is a deficient number, since it is larger than the sum of its proper divisors (203796834796).

228420100904 is a wasteful number, since it uses less digits than its factorization.

228420100904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261949772 (or 261949768 counting only the distinct ones).

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

The spelling of 228420100904 in words is "two hundred twenty-eight billion, four hundred twenty million, one hundred thousand, nine hundred four".