45842172 has 12 divisors (see below), whose sum is σ = 106965096. Its totient is φ = 15280720.

The previous prime is 45842131. The next prime is 45842189. The reversal of 45842172 is 27124854.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1910079 + ... + 1910102.

It is an arithmetic number, because the mean of its divisors is an integer number (8913758).

Almost surely, 2^45842172 is an apocalyptic number.

It is an amenable number.

45842172 is an abundant number, since it is smaller than the sum of its proper divisors (61122924).

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

45842172 is a wasteful number, since it uses less digits than its factorization.

45842172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3820188 (or 3820186 counting only the distinct ones).

The product of its digits is 17920, while the sum is 33.

The square root of 45842172 is about 6770.6847511902. The cubic root of 45842172 is about 357.8945311068.

The spelling of 45842172 in words is "forty-five million, eight hundred forty-two thousand, one hundred seventy-two".