225729498 has 16 divisors (see below), whose sum is σ = 471087936. Its totient is φ = 71971680.

The previous prime is 225729479. The next prime is 225729527. The reversal of 225729498 is 894927522.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 817723 + ... + 817998.

It is an arithmetic number, because the mean of its divisors is an integer number (29442996).

Almost surely, 2^225729498 is an apocalyptic number.

225729498 is an abundant number, since it is smaller than the sum of its proper divisors (245358438).

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

225729498 is a wasteful number, since it uses less digits than its factorization.

225729498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1635749.

The product of its digits is 725760, while the sum is 48.

The square root of 225729498 is about 15024.2969219861. The cubic root of 225729498 is about 608.8768169834.

The spelling of 225729498 in words is "two hundred twenty-five million, seven hundred twenty-nine thousand, four hundred ninety-eight".