44972220 has 48 divisors (see below), whose sum is σ = 126217728. Its totient is φ = 11964480.

The previous prime is 44972167. The next prime is 44972231. The reversal of 44972220 is 2227944.

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

It is a congruent number.

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, 43105 + ... + 44135.

It is an arithmetic number, because the mean of its divisors is an integer number (2629536).

Almost surely, 2^44972220 is an apocalyptic number.

It is an amenable number.

44972220 is an abundant number, since it is smaller than the sum of its proper divisors (81245508).

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

44972220 is a wasteful number, since it uses less digits than its factorization.

44972220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1770 (or 1768 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 44972220 is about 6706.1330138911. The cubic root of 44972220 is about 355.6161224224.

The spelling of 44972220 in words is "forty-four million, nine hundred seventy-two thousand, two hundred twenty".