225807746 has 32 divisors (see below), whose sum is σ = 361292400. Its totient is φ = 105656320.

The previous prime is 225807739. The next prime is 225807763. The reversal of 225807746 is 647708522.

225807746 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 9394225 + 216413521 = 3065^2 + 14711^2 .

It is a Harshad number since it is a multiple of its sum of digits (41).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 639506 + ... + 639858.

Almost surely, 2^225807746 is an apocalyptic number.

225807746 is a deficient number, since it is larger than the sum of its proper divisors (135484654).

225807746 is a wasteful number, since it uses less digits than its factorization.

225807746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694.

The product of its (nonzero) digits is 188160, while the sum is 41.

The square root of 225807746 is about 15026.9007449973. The cubic root of 225807746 is about 608.9471635554.

The spelling of 225807746 in words is "two hundred twenty-five million, eight hundred seven thousand, seven hundred forty-six".