45644590 has 8 divisors (see below), whose sum is σ = 82160280. Its totient is φ = 18257832.

The previous prime is 45644587. The next prime is 45644591. The reversal of 45644590 is 9544654.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45644591) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2282220 + ... + 2282239.

It is an arithmetic number, because the mean of its divisors is an integer number (10270035).

Almost surely, 2^45644590 is an apocalyptic number.

45644590 is a deficient number, since it is larger than the sum of its proper divisors (36515690).

45644590 is a wasteful number, since it uses less digits than its factorization.

45644590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4564466.

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 45644590 is about 6756.0780042862. The cubic root of 45644590 is about 357.3796096490.

The spelling of 45644590 in words is "forty-five million, six hundred forty-four thousand, five hundred ninety".