225620434 has 16 divisors (see below), whose sum is σ = 364753368. Its totient is φ = 104049792.

The previous prime is 225620399. The next prime is 225620503. The reversal of 225620434 is 434026522.

It can be written as a sum of positive squares in 4 ways, for example, as 176969809 + 48650625 = 13303^2 + 6975^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40464 + ... + 45700.

Almost surely, 2^225620434 is an apocalyptic number.

225620434 is a deficient number, since it is larger than the sum of its proper divisors (139132934).

225620434 is a wasteful number, since it uses less digits than its factorization.

225620434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6909.

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 225620434 is about 15020.6668959804. Note that the first 3 decimals coincide. The cubic root of 225620434 is about 608.7787390632.

Adding to 225620434 its reverse (434026522), we get a palindrome (659646956).

The spelling of 225620434 in words is "two hundred twenty-five million, six hundred twenty thousand, four hundred thirty-four".