45442218 has 16 divisors (see below), whose sum is σ = 93816576. Its totient is φ = 14658720.

The previous prime is 45442157. The next prime is 45442277. The reversal of 45442218 is 81224454.

45442218 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121971 + ... + 122342.

It is an arithmetic number, because the mean of its divisors is an integer number (5863536).

Almost surely, 2^45442218 is an apocalyptic number.

45442218 is an abundant number, since it is smaller than the sum of its proper divisors (48374358).

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

45442218 is a wasteful number, since it uses less digits than its factorization.

45442218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244349.

The product of its digits is 10240, while the sum is 30.

The square root of 45442218 is about 6741.0843341409. The cubic root of 45442218 is about 356.8506621423.

The spelling of 45442218 in words is "forty-five million, four hundred forty-two thousand, two hundred eighteen".