225943402 has 12 divisors (see below), whose sum is σ = 357692706. Its totient is φ = 107025480.

The previous prime is 225943373. The next prime is 225943427. The reversal of 225943402 is 204349522.

It can be written as a sum of positive squares in only one way, i.e., 181467841 + 44475561 = 13471^2 + 6669^2 .

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 155749 + ... + 157192.

Almost surely, 2^225943402 is an apocalyptic number.

225943402 is a deficient number, since it is larger than the sum of its proper divisors (131749304).

225943402 is a wasteful number, since it uses less digits than its factorization.

225943402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312981 (or 312962 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 225943402 is about 15031.4138390239. The cubic root of 225943402 is about 609.0690826082.

The spelling of 225943402 in words is "two hundred twenty-five million, nine hundred forty-three thousand, four hundred two".