225040738 has 12 divisors (see below), whose sum is σ = 365525298. Its totient is φ = 103864800.

The previous prime is 225040729. The next prime is 225040741. The reversal of 225040738 is 837040522.

It can be written as a sum of positive squares in 3 ways, for example, as 70610409 + 154430329 = 8403^2 + 12427^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 332563 + ... + 333238.

Almost surely, 2^225040738 is an apocalyptic number.

225040738 is a deficient number, since it is larger than the sum of its proper divisors (140484560).

225040738 is a wasteful number, since it uses less digits than its factorization.

225040738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665829 (or 665816 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 225040738 is about 15001.3578718728. The cubic root of 225040738 is about 608.2569050081.

The spelling of 225040738 in words is "two hundred twenty-five million, forty thousand, seven hundred thirty-eight".