45915222 has 32 divisors (see below), whose sum is σ = 96219648. Its totient is φ = 14579136.

The previous prime is 45915217. The next prime is 45915223. The reversal of 45915222 is 22251954.

It is a super-2 number, since 2×45915222² = 4216415222618568, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 45915222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45915223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42663 + ... + 43725.

It is an arithmetic number, because the mean of its divisors is an integer number (3006864).

Almost surely, 2^45915222 is an apocalyptic number.

45915222 is an abundant number, since it is smaller than the sum of its proper divisors (50304426).

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

45915222 is a wasteful number, since it uses less digits than its factorization.

45915222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1404.

The product of its digits is 7200, while the sum is 30.

The square root of 45915222 is about 6776.0771837399. The cubic root of 45915222 is about 358.0845331626.

The spelling of 45915222 in words is "forty-five million, nine hundred fifteen thousand, two hundred twenty-two".