44064513 has 8 divisors (see below), whose sum is σ = 65280800. Its totient is φ = 29376324.

The previous prime is 44064499. The next prime is 44064569. The reversal of 44064513 is 31546044.

44064513 is a `hidden beast` number, since 4 + 4 + 0 + 645 + 13 = 666.

It is not a de Polignac number, because 44064513 - 2⁴ = 44064497 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1632019 = 44064513 / (4 + 4 + 0 + 6 + 4 + 5 + 1 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44064593) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 815983 + ... + 816036.

It is an arithmetic number, because the mean of its divisors is an integer number (8160100).

Almost surely, 2^44064513 is an apocalyptic number.

It is an amenable number.

44064513 is a deficient number, since it is larger than the sum of its proper divisors (21216287).

44064513 is a wasteful number, since it uses less digits than its factorization.

44064513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1632028 (or 1632022 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 44064513 is about 6638.1106498762. The cubic root of 44064513 is about 353.2072897006.

The spelling of 44064513 in words is "forty-four million, sixty-four thousand, five hundred thirteen".