44430013 has 2 divisors, whose sum is σ = 44430014. Its totient is φ = 44430012.

The previous prime is 44430011. The next prime is 44430017. The reversal of 44430013 is 31003444.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43270084 + 1159929 = 6578^2 + 1077^2 .

It is a cyclic number.

It is not a de Polignac number, because 44430013 - 2¹ = 44430011 is a prime.

Together with 44430011, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44430011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22215006 + 22215007.

It is an arithmetic number, because the mean of its divisors is an integer number (22215007).

Almost surely, 2^44430013 is an apocalyptic number.

It is an amenable number.

44430013 is a deficient number, since it is larger than the sum of its proper divisors (1).

44430013 is an equidigital number, since it uses as much as digits as its factorization.

44430013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 44430013 is about 6665.5842204566. The cubic root of 44430013 is about 354.1811796652.

Adding to 44430013 its reverse (31003444), we get a palindrome (75433457).

The spelling of 44430013 in words is "forty-four million, four hundred thirty thousand, thirteen".