44391456 has 96 divisors (see below), whose sum is σ = 130636800. Its totient is φ = 14664960.

The previous prime is 44391409. The next prime is 44391491. The reversal of 44391456 is 65419344.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 44391456.

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, 164890 + ... + 165158.

It is an arithmetic number, because the mean of its divisors is an integer number (1360800).

Almost surely, 2^44391456 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 44391456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65318400).

44391456 is an abundant number, since it is smaller than the sum of its proper divisors (86245344).

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

44391456 is a wasteful number, since it uses less digits than its factorization.

44391456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479 (or 465 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 44391456 is about 6662.6913480965. The cubic root of 44391456 is about 354.0786955179.

The spelling of 44391456 in words is "forty-four million, three hundred ninety-one thousand, four hundred fifty-six".