45200220 has 96 divisors (see below), whose sum is σ = 137507328. Its totient is φ = 11027712.

The previous prime is 45200219. The next prime is 45200237. The reversal of 45200220 is 2200254.

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

It is a self number, because there is not a number n which added to its sum of digits gives 45200220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 130087 + ... + 130433.

It is an arithmetic number, because the mean of its divisors is an integer number (1432368).

Almost surely, 2^45200220 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 45200220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68753664).

45200220 is an abundant number, since it is smaller than the sum of its proper divisors (92307108).

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

45200220 is a wasteful number, since it uses less digits than its factorization.

45200220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539 (or 537 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 15.

The square root of 45200220 is about 6723.1108870820. The cubic root of 45200220 is about 356.2160767945.

Adding to 45200220 its reverse (2200254), we get a palindrome (47400474).

The spelling of 45200220 in words is "forty-five million, two hundred thousand, two hundred twenty".