44809980 has 96 divisors (see below), whose sum is σ = 137894400. Its totient is φ = 10821888.

The previous prime is 44809951. The next prime is 44809993. The reversal of 44809980 is 8990844.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

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, 25366 + ... + 27074.

It is an arithmetic number, because the mean of its divisors is an integer number (1436400).

Almost surely, 2^44809980 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 44809980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68947200).

44809980 is an abundant number, since it is smaller than the sum of its proper divisors (93084420).

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

44809980 is a wasteful number, since it uses less digits than its factorization.

44809980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1763 (or 1761 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 44809980 is about 6694.0256946026. The cubic root of 44809980 is about 355.1879716018.

The spelling of 44809980 in words is "forty-four million, eight hundred nine thousand, nine hundred eighty".