44387424 has 72 divisors (see below), whose sum is σ = 131734512. Its totient is φ = 14150400.

The previous prime is 44387419. The next prime is 44387467. The reversal of 44387424 is 42478344.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (72).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3274 + ... + 9974.

It is an arithmetic number, because the mean of its divisors is an integer number (1829646).

Almost surely, 2^44387424 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 44387424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65867256).

44387424 is an abundant number, since it is smaller than the sum of its proper divisors (87347088).

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

44387424 is a wasteful number, since it uses less digits than its factorization.

44387424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6740 (or 6729 counting only the distinct ones).

The product of its digits is 86016, while the sum is 36.

The square root of 44387424 is about 6662.3887607974. The cubic root of 44387424 is about 354.0679750726.

The spelling of 44387424 in words is "forty-four million, three hundred eighty-seven thousand, four hundred twenty-four".