44499780 has 120 divisors (see below), whose sum is σ = 150406872. Its totient is φ = 10948608.

The previous prime is 44499757. The next prime is 44499799. The reversal of 44499780 is 8799444.

It can be written as a sum of positive squares in 4 ways, for example, as 2742336 + 41757444 = 1656^2 + 6462^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 20004 + ... + 22116.

Almost surely, 2^44499780 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 44499780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75203436).

44499780 is an abundant number, since it is smaller than the sum of its proper divisors (105907092).

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

44499780 is a wasteful number, since it uses less digits than its factorization.

44499780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2147 (or 2136 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 44499780 is about 6670.8155423456. The cubic root of 44499780 is about 354.3664690984.

The spelling of 44499780 in words is "forty-four million, four hundred ninety-nine thousand, seven hundred eighty".