225440604 has 48 divisors (see below), whose sum is σ = 618861600. Its totient is φ = 70725888.

The previous prime is 225440603. The next prime is 225440617. The reversal of 225440604 is 406044522.

225440604 is a `hidden beast` number, since 2 + 2 + 54 + 4 + 0 + 604 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225440603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59559 + ... + 63230.

It is an arithmetic number, because the mean of its divisors is an integer number (12892950).

Almost surely, 2^225440604 is an apocalyptic number.

It is an amenable number.

225440604 is an abundant number, since it is smaller than the sum of its proper divisors (393420996).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225440604 is a wasteful number, since it uses less digits than its factorization.

225440604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122819 (or 122811 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 225440604 is about 15014.6796169615. The cubic root of 225440604 is about 608.6169543974.

The spelling of 225440604 in words is "two hundred twenty-five million, four hundred forty thousand, six hundred four".