44431641 has 12 divisors (see below), whose sum is σ = 64324260. Its totient is φ = 29554080.

The previous prime is 44431627. The next prime is 44431657. The reversal of 44431641 is 14613444.

It can be written as a sum of positive squares in 2 ways, for example, as 31036041 + 13395600 = 5571^2 + 3660^2 .

It is not a de Polignac number, because 44431641 - 2⁵ = 44431609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (44431691) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1206 + ... + 9503.

It is an arithmetic number, because the mean of its divisors is an integer number (5360355).

Almost surely, 2^44431641 is an apocalyptic number.

It is an amenable number.

44431641 is a deficient number, since it is larger than the sum of its proper divisors (19892619).

44431641 is a wasteful number, since it uses less digits than its factorization.

44431641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11176 (or 11173 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 44431641 is about 6665.7063391662. The cubic root of 44431641 is about 354.1855055692.

It can be divided in two parts, 4443 and 1641, that added together give a square (6084 = 78²).

The spelling of 44431641 in words is "forty-four million, four hundred thirty-one thousand, six hundred forty-one".