45785220 has 48 divisors (see below), whose sum is σ = 138062400. Its totient is φ = 11270016.

The previous prime is 45785213. The next prime is 45785281. The reversal of 45785220 is 2258754.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28570 + ... + 30129.

It is an arithmetic number, because the mean of its divisors is an integer number (2876300).

Almost surely, 2^45785220 is an apocalyptic number.

It is an amenable number.

45785220 is an abundant number, since it is smaller than the sum of its proper divisors (92277180).

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

45785220 is a wasteful number, since it uses less digits than its factorization.

45785220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58724 (or 58722 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 33.

The square root of 45785220 is about 6766.4776656692. The cubic root of 45785220 is about 357.7462596562.

The spelling of 45785220 in words is "forty-five million, seven hundred eighty-five thousand, two hundred twenty".