225921934 has 16 divisors (see below), whose sum is σ = 394603488. Its totient is φ = 94996512.

The previous prime is 225921887. The next prime is 225921937. The reversal of 225921934 is 439129522.

It is a junction number, because it is equal to n+sod(n) for n = 225921893 and 225921902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225921937) by changing a digit.

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, 151497 + ... + 152980.

It is an arithmetic number, because the mean of its divisors is an integer number (24662718).

Almost surely, 2^225921934 is an apocalyptic number.

225921934 is a deficient number, since it is larger than the sum of its proper divisors (168681554).

225921934 is a wasteful number, since it uses less digits than its factorization.

225921934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304539.

The product of its digits is 38880, while the sum is 37.

The square root of 225921934 is about 15030.6997175780. The cubic root of 225921934 is about 609.0497917754.

The spelling of 225921934 in words is "two hundred twenty-five million, nine hundred twenty-one thousand, nine hundred thirty-four".