225944028 has 36 divisors (see below), whose sum is σ = 574053480. Its totient is φ = 74930016.

The previous prime is 225944021. The next prime is 225944039. The reversal of 225944028 is 820449522.

225944028 is a `hidden beast` number, since 2 + 2 + 594 + 40 + 28 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 225943983 and 225944001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225944021) 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 11 ways as a sum of consecutive naturals, for example, 8838 + ... + 23021.

It is an arithmetic number, because the mean of its divisors is an integer number (15945930).

Almost surely, 2^225944028 is an apocalyptic number.

It is an amenable number.

225944028 is an abundant number, since it is smaller than the sum of its proper divisors (348109452).

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

225944028 is a wasteful number, since it uses less digits than its factorization.

225944028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32066 (or 32061 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 225944028 is about 15031.4346620674. The cubic root of 225944028 is about 609.0696451044.

The spelling of 225944028 in words is "two hundred twenty-five million, nine hundred forty-four thousand, twenty-eight".