45905620 has 12 divisors (see below), whose sum is σ = 96401844. Its totient is φ = 18362240.

The previous prime is 45905603. The next prime is 45905647. The reversal of 45905620 is 2650954.

It can be written as a sum of positive squares in 2 ways, for example, as 28366276 + 17539344 = 5326^2 + 4188^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1147621 + ... + 1147660.

It is an arithmetic number, because the mean of its divisors is an integer number (8033487).

Almost surely, 2^45905620 is an apocalyptic number.

It is an amenable number.

45905620 is an abundant number, since it is smaller than the sum of its proper divisors (50496224).

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

45905620 is a wasteful number, since it uses less digits than its factorization.

45905620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2295290 (or 2295288 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 45905620 is about 6775.3686246580. The cubic root of 45905620 is about 358.0595700004.

The spelling of 45905620 in words is "forty-five million, nine hundred five thousand, six hundred twenty".