225422918 has 8 divisors (see below), whose sum is σ = 386439312. Its totient is φ = 96609816.

The previous prime is 225422891. The next prime is 225422947. The reversal of 225422918 is 819224522.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 8050805 + ... + 8050832.

It is an arithmetic number, because the mean of its divisors is an integer number (48304914).

Almost surely, 2^225422918 is an apocalyptic number.

225422918 is a deficient number, since it is larger than the sum of its proper divisors (161016394).

225422918 is a wasteful number, since it uses less digits than its factorization.

225422918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16101646.

The product of its digits is 23040, while the sum is 35.

The square root of 225422918 is about 15014.0906484542. The cubic root of 225422918 is about 608.6010384817.

The spelling of 225422918 in words is "two hundred twenty-five million, four hundred twenty-two thousand, nine hundred eighteen".