44989440 has 176 divisors, whose sum is σ = 150331680. Its totient is φ = 11468800.

The previous prime is 44989433. The next prime is 44989453. The reversal of 44989440 is 4498944.

It is a junction number, because it is equal to n+sod(n) for n = 44989392 and 44989401.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 445390 + ... + 445490.

Almost surely, 2^44989440 is an apocalyptic number.

44989440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 44989440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75165840).

44989440 is an abundant number, since it is smaller than the sum of its proper divisors (105342240).

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

44989440 is a wasteful number, since it uses less digits than its factorization.

44989440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158 (or 140 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 44989440 is about 6707.4167903896. The cubic root of 44989440 is about 355.6615054625.

The spelling of 44989440 in words is "forty-four million, nine hundred eighty-nine thousand, four hundred forty".