44664220 has 24 divisors (see below), whose sum is σ = 94727808. Its totient is φ = 17688000.

The previous prime is 44664197. The next prime is 44664227. The reversal of 44664220 is 2246644.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44664227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9036 + ... + 13075.

It is an arithmetic number, because the mean of its divisors is an integer number (3946992).

Almost surely, 2^44664220 is an apocalyptic number.

It is an amenable number.

44664220 is an abundant number, since it is smaller than the sum of its proper divisors (50063588).

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

44664220 is a wasteful number, since it uses less digits than its factorization.

44664220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22221 (or 22219 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 44664220 is about 6683.1295064513. The cubic root of 44664220 is about 354.8024292436.

The spelling of 44664220 in words is "forty-four million, six hundred sixty-four thousand, two hundred twenty".