44381904 has 80 divisors (see below), whose sum is σ = 136753152. Its totient is φ = 12127104.

The previous prime is 44381903. The next prime is 44381923. The reversal of 44381904 is 40918344.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44381903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4857 + ... + 10599.

Almost surely, 2^44381904 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 44381904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68376576).

44381904 is an abundant number, since it is smaller than the sum of its proper divisors (92371248).

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

44381904 is a wasteful number, since it uses less digits than its factorization.

44381904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5784 (or 5778 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 44381904 is about 6661.9744820886. The cubic root of 44381904 is about 354.0532972197.

The spelling of 44381904 in words is "forty-four million, three hundred eighty-one thousand, nine hundred four".