44742589 has 4 divisors (see below), whose sum is σ = 47374524. Its totient is φ = 42110656.

The previous prime is 44742553. The next prime is 44742629. The reversal of 44742589 is 98524744.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17264025 + 27478564 = 4155^2 + 5242^2 .

It is a cyclic number.

It is not a de Polignac number, because 44742589 - 2⁷ = 44742461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44749589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1315942 + ... + 1315975.

It is an arithmetic number, because the mean of its divisors is an integer number (11843631).

Almost surely, 2^44742589 is an apocalyptic number.

It is an amenable number.

44742589 is a deficient number, since it is larger than the sum of its proper divisors (2631935).

44742589 is a wasteful number, since it uses less digits than its factorization.

44742589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2631934.

The product of its digits is 322560, while the sum is 43.

The square root of 44742589 is about 6688.9901330470. The cubic root of 44742589 is about 355.0098231759.

The spelling of 44742589 in words is "forty-four million, seven hundred forty-two thousand, five hundred eighty-nine".