44565389 has 12 divisors (see below), whose sum is σ = 49503132. Its totient is φ = 40085760.

The previous prime is 44565379. The next prime is 44565397. The reversal of 44565389 is 98356544.

It can be written as a sum of positive squares in 2 ways, for example, as 7562500 + 37002889 = 2750^2 + 6083^2 .

It is not a de Polignac number, because 44565389 - 2⁸ = 44565133 is a prime.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44565359) 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, 9839 + ... + 13635.

It is an arithmetic number, because the mean of its divisors is an integer number (4125261).

Almost surely, 2^44565389 is an apocalyptic number.

It is an amenable number.

44565389 is a deficient number, since it is larger than the sum of its proper divisors (4937743).

44565389 is a wasteful number, since it uses less digits than its factorization.

44565389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3916 (or 3905 counting only the distinct ones).

The product of its digits is 518400, while the sum is 44.

The square root of 44565389 is about 6675.7313457029. The cubic root of 44565389 is about 354.5405389692.

The spelling of 44565389 in words is "forty-four million, five hundred sixty-five thousand, three hundred eighty-nine".