45880020 has 120 divisors (see below), whose sum is σ = 145711104. Its totient is φ = 12083904.

The previous prime is 45880019. The next prime is 45880063. The reversal of 45880020 is 2008854.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

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 39 ways as a sum of consecutive naturals, for example, 205629 + ... + 205851.

Almost surely, 2^45880020 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 45880020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72855552).

45880020 is an abundant number, since it is smaller than the sum of its proper divisors (99831084).

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

45880020 is a wasteful number, since it uses less digits than its factorization.

45880020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371 (or 360 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 45880020 is about 6773.4791650968. The cubic root of 45880020 is about 357.9929984170.

Adding to 45880020 its reverse (2008854), we get a palindrome (47888874).

The spelling of 45880020 in words is "forty-five million, eight hundred eighty thousand, twenty".