44391424 has 88 divisors (see below), whose sum is σ = 110832768. Its totient is φ = 17264640.

The previous prime is 44391409. The next prime is 44391491. The reversal of 44391424 is 42419344.

It is a tau number, because it is divible by the number of its divisors (88).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78567 + ... + 79129.

Almost surely, 2^44391424 is an apocalyptic number.

44391424 is a gapful number since it is divisible by the number (44) 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 44391424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55416384).

44391424 is an abundant number, since it is smaller than the sum of its proper divisors (66441344).

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

44391424 is a wasteful number, since it uses less digits than its factorization.

44391424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601 (or 583 counting only the distinct ones).

The product of its digits is 13824, while the sum is 31.

The square root of 44391424 is about 6662.6889466641. The cubic root of 44391424 is about 354.0786104376.

The spelling of 44391424 in words is "forty-four million, three hundred ninety-one thousand, four hundred twenty-four".