44418537 has 20 divisors (see below), whose sum is σ = 68151556. Its totient is φ = 28810080.

The previous prime is 44418533. The next prime is 44418571. The reversal of 44418537 is 73581444.

44418537 is a `hidden beast` number, since 444 + 185 + 37 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 30735936 + 13682601 = 5544^2 + 3699^2 .

It is not a de Polignac number, because 44418537 - 2² = 44418533 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44418533) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4414 + ... + 10407.

Almost surely, 2^44418537 is an apocalyptic number.

It is an amenable number.

44418537 is a deficient number, since it is larger than the sum of its proper divisors (23733019).

44418537 is a wasteful number, since it uses less digits than its factorization.

44418537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14870 (or 14861 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 44418537 is about 6664.7233250901. The cubic root of 44418537 is about 354.1506827635.

It can be divided in two parts, 444 and 18537, that added together give a palindrome (18981).

The spelling of 44418537 in words is "forty-four million, four hundred eighteen thousand, five hundred thirty-seven".