44118661 has 2 divisors, whose sum is σ = 44118662. Its totient is φ = 44118660.

The previous prime is 44118653. The next prime is 44118707. The reversal of 44118661 is 16681144.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43428100 + 690561 = 6590^2 + 831^2 .

It is a cyclic number.

It is not a de Polignac number, because 44118661 - 2³ = 44118653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44118601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22059330 + 22059331.

It is an arithmetic number, because the mean of its divisors is an integer number (22059331).

Almost surely, 2^44118661 is an apocalyptic number.

It is an amenable number.

44118661 is a deficient number, since it is larger than the sum of its proper divisors (1).

44118661 is an equidigital number, since it uses as much as digits as its factorization.

44118661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4608, while the sum is 31.

The square root of 44118661 is about 6642.1879678311. The cubic root of 44118661 is about 353.3519082636.

The spelling of 44118661 in words is "forty-four million, one hundred eighteen thousand, six hundred sixty-one".