45438942 has 32 divisors (see below), whose sum is σ = 93312000. Its totient is φ = 14744288.

The previous prime is 45438929. The next prime is 45438973. The reversal of 45438942 is 24983454.

It is a self number, because there is not a number n which added to its sum of digits gives 45438942.

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 15 ways as a sum of consecutive naturals, for example, 75559 + ... + 76157.

It is an arithmetic number, because the mean of its divisors is an integer number (2916000).

Almost surely, 2^45438942 is an apocalyptic number.

45438942 is an abundant number, since it is smaller than the sum of its proper divisors (47873058).

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

45438942 is a wasteful number, since it uses less digits than its factorization.

45438942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920.

The product of its digits is 138240, while the sum is 39.

The square root of 45438942 is about 6740.8413421471. The cubic root of 45438942 is about 356.8420866302.

The spelling of 45438942 in words is "forty-five million, four hundred thirty-eight thousand, nine hundred forty-two".