44456513 has 4 divisors (see below), whose sum is σ = 47071620. Its totient is φ = 41841408.

The previous prime is 44456491. The next prime is 44456519. The reversal of 44456513 is 31565444.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 41576704 + 2879809 = 6448^2 + 1697^2 .

It is a cyclic number.

It is not a de Polignac number, because 44456513 - 2¹⁸ = 44194369 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 44456513.

It is not an unprimeable number, because it can be changed into a prime (44456519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1307528 + ... + 1307561.

It is an arithmetic number, because the mean of its divisors is an integer number (11767905).

Almost surely, 2^44456513 is an apocalyptic number.

It is an amenable number.

44456513 is a deficient number, since it is larger than the sum of its proper divisors (2615107).

44456513 is a wasteful number, since it uses less digits than its factorization.

44456513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2615106.

The product of its digits is 28800, while the sum is 32.

The square root of 44456513 is about 6667.5717468956. The cubic root of 44456513 is about 354.2515820442.

The spelling of 44456513 in words is "forty-four million, four hundred fifty-six thousand, five hundred thirteen".