45112020 has 24 divisors (see below), whose sum is σ = 126313824. Its totient is φ = 12029856.

The previous prime is 45112009. The next prime is 45112069. The reversal of 45112020 is 2021154.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 375874 + ... + 375993.

It is an arithmetic number, because the mean of its divisors is an integer number (5263076).

Almost surely, 2^45112020 is an apocalyptic number.

It is an amenable number.

45112020 is an abundant number, since it is smaller than the sum of its proper divisors (81201804).

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

45112020 is a wasteful number, since it uses less digits than its factorization.

45112020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751879 (or 751877 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 45112020 is about 6716.5482206264. The cubic root of 45112020 is about 355.9842289861.

Adding to 45112020 its reverse (2021154), we get a palindrome (47133174).

The spelling of 45112020 in words is "forty-five million, one hundred twelve thousand, twenty".