44745813 has 24 divisors (see below), whose sum is σ = 74325888. Its totient is φ = 25409952.

The previous prime is 44745797. The next prime is 44745823. The reversal of 44745813 is 31854744.

44745813 is a `hidden beast` number, since 4 + 4 + 74 + 581 + 3 = 666.

It is not a de Polignac number, because 44745813 - 2⁴ = 44745797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44745823) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8395 + ... + 12647.

It is an arithmetic number, because the mean of its divisors is an integer number (3096912).

Almost surely, 2^44745813 is an apocalyptic number.

It is an amenable number.

44745813 is a deficient number, since it is larger than the sum of its proper divisors (29580075).

44745813 is a wasteful number, since it uses less digits than its factorization.

44745813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4433 (or 4430 counting only the distinct ones).

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

The square root of 44745813 is about 6689.2311217359. The cubic root of 44745813 is about 355.0183499078.

The spelling of 44745813 in words is "forty-four million, seven hundred forty-five thousand, eight hundred thirteen".