225437928 has 32 divisors (see below), whose sum is σ = 564127200. Its totient is φ = 75075008.

The previous prime is 225437923. The next prime is 225437963. The reversal of 225437928 is 829734522.

It is a self number, because there is not a number n which added to its sum of digits gives 225437928.

It is not an unprimeable number, because it can be changed into a prime (225437923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25675 + ... + 33317.

It is an arithmetic number, because the mean of its divisors is an integer number (17628975).

Almost surely, 2^225437928 is an apocalyptic number.

It is an amenable number.

225437928 is an abundant number, since it is smaller than the sum of its proper divisors (338689272).

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

225437928 is a wasteful number, since it uses less digits than its factorization.

225437928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8881 (or 8877 counting only the distinct ones).

The product of its digits is 241920, while the sum is 42.

The square root of 225437928 is about 15014.5905039065. The cubic root of 225437928 is about 608.6145462754.

The spelling of 225437928 in words is "two hundred twenty-five million, four hundred thirty-seven thousand, nine hundred twenty-eight".