44540649 has 6 divisors (see below), whose sum is σ = 64336506. Its totient is φ = 29693760.

The previous prime is 44540641. The next prime is 44540651. The reversal of 44540649 is 94604544.

44540649 is a `hidden beast` number, since 4 + 4 + 5 + 4 + 0 + 649 = 666.

It can be written as a sum of positive squares in only one way, i.e., 24800400 + 19740249 = 4980^2 + 4443^2 .

It is not a de Polignac number, because 44540649 - 2³ = 44540641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (44540641) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2474472 + ... + 2474489.

It is an arithmetic number, because the mean of its divisors is an integer number (10722751).

Almost surely, 2^44540649 is an apocalyptic number.

It is an amenable number.

44540649 is a deficient number, since it is larger than the sum of its proper divisors (19795857).

44540649 is a wasteful number, since it uses less digits than its factorization.

44540649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4948967 (or 4948964 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 44540649 is about 6673.8781079669. The cubic root of 44540649 is about 354.4749203599.

The spelling of 44540649 in words is "forty-four million, five hundred forty thousand, six hundred forty-nine".