45872220 has 48 divisors (see below), whose sum is σ = 130370688. Its totient is φ = 12048960.

The previous prime is 45872201. The next prime is 45872221. The reversal of 45872220 is 2227854.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45872221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1686 + ... + 9725.

It is an arithmetic number, because the mean of its divisors is an integer number (2716056).

Almost surely, 2^45872220 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 45872220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65185344).

45872220 is an abundant number, since it is smaller than the sum of its proper divisors (84498468).

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

45872220 is a wasteful number, since it uses less digits than its factorization.

45872220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11490 (or 11488 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 45872220 is about 6772.9033656180. The cubic root of 45872220 is about 357.9727099658.

The spelling of 45872220 in words is "forty-five million, eight hundred seventy-two thousand, two hundred twenty".