44921220 has 24 divisors (see below), whose sum is σ = 125779584. Its totient is φ = 11978976.

The previous prime is 44921213. The next prime is 44921249. The reversal of 44921220 is 2212944.

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, 374284 + ... + 374403.

It is an arithmetic number, because the mean of its divisors is an integer number (5240816).

Almost surely, 2^44921220 is an apocalyptic number.

It is an amenable number.

44921220 is an abundant number, since it is smaller than the sum of its proper divisors (80858364).

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

44921220 is a wasteful number, since it uses less digits than its factorization.

44921220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748699 (or 748697 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 44921220 is about 6702.3294457972. The cubic root of 44921220 is about 355.4816447208.

The spelling of 44921220 in words is "forty-four million, nine hundred twenty-one thousand, two hundred twenty".