44135138 has 12 divisors (see below), whose sum is σ = 69871590. Its totient is φ = 20905776.

The previous prime is 44135123. The next prime is 44135149. The reversal of 44135138 is 83153144.

It can be written as a sum of positive squares in only one way, i.e., 43467649 + 667489 = 6593^2 + 817^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 44135138.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 29843 + ... + 31286.

Almost surely, 2^44135138 is an apocalyptic number.

44135138 is a deficient number, since it is larger than the sum of its proper divisors (25736452).

44135138 is a wasteful number, since it uses less digits than its factorization.

44135138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61169 (or 61150 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 44135138 is about 6643.4281812931. The cubic root of 44135138 is about 353.3958915775.

The spelling of 44135138 in words is "forty-four million, one hundred thirty-five thousand, one hundred thirty-eight".