45637020 has 240 divisors, whose sum is σ = 169047648. Its totient is φ = 10160640.

The previous prime is 45637019. The next prime is 45637049. The reversal of 45637020 is 2073654.

It is a happy number.

45637020 is a `hidden beast` number, since 4 + 5 + 637 + 0 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 231562 + ... + 231758.

Almost surely, 2^45637020 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 45637020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84523824).

45637020 is an abundant number, since it is smaller than the sum of its proper divisors (123410628).

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

45637020 is a wasteful number, since it uses less digits than its factorization.

45637020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242 (or 231 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 45637020 is about 6755.5177447772. The cubic root of 45637020 is about 357.3598518258.

The spelling of 45637020 in words is "forty-five million, six hundred thirty-seven thousand, twenty".