44470913 has 4 divisors (see below), whose sum is σ = 44484420. Its totient is φ = 44457408.

The previous prime is 44470879. The next prime is 44470919. The reversal of 44470913 is 31907444.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 18593344 + 25877569 = 4312^2 + 5087^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44470913 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 44470913.

It is not an unprimeable number, because it can be changed into a prime (44470919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1781 + ... + 9597.

It is an arithmetic number, because the mean of its divisors is an integer number (11121105).

Almost surely, 2^44470913 is an apocalyptic number.

It is an amenable number.

44470913 is a deficient number, since it is larger than the sum of its proper divisors (13507).

44470913 is an equidigital number, since it uses as much as digits as its factorization.

44470913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13506.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 44470913 is about 6668.6515128623. The cubic root of 44470913 is about 354.2898266999.

The spelling of 44470913 in words is "forty-four million, four hundred seventy thousand, nine hundred thirteen".