225724434 has 32 divisors (see below), whose sum is σ = 498040704. Its totient is φ = 67758720.

The previous prime is 225724379. The next prime is 225724489. The reversal of 225724434 is 434427522.

It is an interprime number because it is at equal distance from previous prime (225724379) and next prime (225724489).

It is a junction number, because it is equal to n+sod(n) for n = 225724395 and 225724404.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32094 + ... + 38489.

It is an arithmetic number, because the mean of its divisors is an integer number (15563772).

Almost surely, 2^225724434 is an apocalyptic number.

225724434 is an abundant number, since it is smaller than the sum of its proper divisors (272316270).

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

225724434 is a wasteful number, since it uses less digits than its factorization.

225724434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70642.

The product of its digits is 53760, while the sum is 33.

The square root of 225724434 is about 15024.1283940201. The cubic root of 225724434 is about 608.8722637825.

The spelling of 225724434 in words is "two hundred twenty-five million, seven hundred twenty-four thousand, four hundred thirty-four".