44625409 has 2 divisors, whose sum is σ = 44625410. Its totient is φ = 44625408.

The previous prime is 44625397. The next prime is 44625437. The reversal of 44625409 is 90452644.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36869184 + 7756225 = 6072^2 + 2785^2 .

It is a cyclic number.

It is not a de Polignac number, because 44625409 - 2⁵ = 44625377 is a prime.

It is not a weakly prime, because it can be changed into another prime (44625479) 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 as a sum of consecutive naturals, namely, 22312704 + 22312705.

It is an arithmetic number, because the mean of its divisors is an integer number (22312705).

Almost surely, 2^44625409 is an apocalyptic number.

It is an amenable number.

44625409 is a deficient number, since it is larger than the sum of its proper divisors (1).

44625409 is an equidigital number, since it uses as much as digits as its factorization.

44625409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 44625409 is about 6680.2252207542. The cubic root of 44625409 is about 354.6996308697.

The spelling of 44625409 in words is "forty-four million, six hundred twenty-five thousand, four hundred nine".