44720613 has 32 divisors (see below), whose sum is σ = 76267520. Its totient is φ = 25369200.

The previous prime is 44720597. The next prime is 44720633. The reversal of 44720613 is 31602744.

44720613 is a `hidden beast` number, since 4 + 47 + 2 + 0 + 613 = 666.

44720613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 44720613 - 2⁴ = 44720597 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44720633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27756 + ... + 29322.

It is an arithmetic number, because the mean of its divisors is an integer number (2383360).

Almost surely, 2^44720613 is an apocalyptic number.

It is an amenable number.

44720613 is a deficient number, since it is larger than the sum of its proper divisors (31546907).

44720613 is a wasteful number, since it uses less digits than its factorization.

44720613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1734 (or 1728 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 44720613 is about 6687.3472319000. The cubic root of 44720613 is about 354.9516908408.

The spelling of 44720613 in words is "forty-four million, seven hundred twenty thousand, six hundred thirteen".