225190788 has 48 divisors (see below), whose sum is σ = 532022400. Its totient is φ = 74131200.

The previous prime is 225190783. The next prime is 225190811. The reversal of 225190788 is 887091522.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (225190781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 431968 + ... + 432488.

It is an arithmetic number, because the mean of its divisors is an integer number (11083800).

Almost surely, 2^225190788 is an apocalyptic number.

It is an amenable number.

225190788 is an abundant number, since it is smaller than the sum of its proper divisors (306831612).

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

225190788 is a wasteful number, since it uses less digits than its factorization.

225190788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 908 (or 906 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 42.

The square root of 225190788 is about 15006.3582524209. The cubic root of 225190788 is about 608.3920637529.

It can be divided in two parts, 2251 and 90788, that added together give a palindrome (93039).

The spelling of 225190788 in words is "two hundred twenty-five million, one hundred ninety thousand, seven hundred eighty-eight".