45637620 has 216 divisors, whose sum is σ = 160532064. Its totient is φ = 9652608.

The previous prime is 45637609. The next prime is 45637637. The reversal of 45637620 is 2673654.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1061319 + ... + 1061361.

It is an arithmetic number, because the mean of its divisors is an integer number (743204).

Almost surely, 2^45637620 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45637620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80266032).

45637620 is an abundant number, since it is smaller than the sum of its proper divisors (114894444).

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

45637620 is a wasteful number, since it uses less digits than its factorization.

45637620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107 (or 79 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 33.

The square root of 45637620 is about 6755.5621527746. The cubic root of 45637620 is about 357.3614179153.

The spelling of 45637620 in words is "forty-five million, six hundred thirty-seven thousand, six hundred twenty".