44987144 has 8 divisors (see below), whose sum is σ = 84350910. Its totient is φ = 22493568.

The previous prime is 44987143. The next prime is 44987167. The reversal of 44987144 is 44178944.

It can be written as a sum of positive squares in only one way, i.e., 43692100 + 1295044 = 6610^2 + 1138^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (44987143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2811689 + ... + 2811704.

Almost surely, 2^44987144 is an apocalyptic number.

It is an amenable number.

44987144 is a deficient number, since it is larger than the sum of its proper divisors (39363766).

44987144 is a wasteful number, since it uses less digits than its factorization.

44987144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5623399 (or 5623395 counting only the distinct ones).

The product of its digits is 129024, while the sum is 41.

The square root of 44987144 is about 6707.2456343867. The cubic root of 44987144 is about 355.6554550597.

The spelling of 44987144 in words is "forty-four million, nine hundred eighty-seven thousand, one hundred forty-four".