45742590 has 64 divisors (see below), whose sum is σ = 122757120. Its totient is φ = 12120480.

The previous prime is 45742589. The next prime is 45742601. The reversal of 45742590 is 9524754.

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 31 ways as a sum of consecutive naturals, for example, 51127 + ... + 52013.

It is an arithmetic number, because the mean of its divisors is an integer number (1918080).

Almost surely, 2^45742590 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45742590, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61378560).

45742590 is an abundant number, since it is smaller than the sum of its proper divisors (77014530).

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

45742590 is a wasteful number, since it uses less digits than its factorization.

45742590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1094 (or 1088 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 45742590 is about 6763.3268440909. The cubic root of 45742590 is about 357.6351942750.

The spelling of 45742590 in words is "forty-five million, seven hundred forty-two thousand, five hundred ninety".