44450013 has 4 divisors (see below), whose sum is σ = 59266688. Its totient is φ = 29633340.

The previous prime is 44450009. The next prime is 44450039. The reversal of 44450013 is 31005444.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 44450013 - 2² = 44450009 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44450213) 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, 7408333 + ... + 7408338.

It is an arithmetic number, because the mean of its divisors is an integer number (14816672).

Almost surely, 2^44450013 is an apocalyptic number.

It is an amenable number.

44450013 is a deficient number, since it is larger than the sum of its proper divisors (14816675).

44450013 is a wasteful number, since it uses less digits than its factorization.

44450013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14816674.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 44450013 is about 6667.0842952523. The cubic root of 44450013 is about 354.2343161263.

Adding to 44450013 its reverse (31005444), we get a palindrome (75455457).

The spelling of 44450013 in words is "forty-four million, four hundred fifty thousand, thirteen".