44540689 has 2 divisors, whose sum is σ = 44540690. Its totient is φ = 44540688.

The previous prime is 44540687. The next prime is 44540701. The reversal of 44540689 is 98604544.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41062464 + 3478225 = 6408^2 + 1865^2 .

It is a cyclic number.

It is not a de Polignac number, because 44540689 - 2¹ = 44540687 is a prime.

Together with 44540687, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (44540681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22270344 + 22270345.

It is an arithmetic number, because the mean of its divisors is an integer number (22270345).

Almost surely, 2^44540689 is an apocalyptic number.

It is an amenable number.

44540689 is a deficient number, since it is larger than the sum of its proper divisors (1).

44540689 is an equidigital number, since it uses as much as digits as its factorization.

44540689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 44540689 is about 6673.8811047246. The cubic root of 44540689 is about 354.4750264727.

The spelling of 44540689 in words is "forty-four million, five hundred forty thousand, six hundred eighty-nine".