44644409 has 2 divisors, whose sum is σ = 44644410. Its totient is φ = 44644408.

The previous prime is 44644399. The next prime is 44644417. The reversal of 44644409 is 90444644.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43930384 + 714025 = 6628^2 + 845^2 .

It is a cyclic number.

It is not a de Polignac number, because 44644409 - 2⁴ = 44644393 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (44644489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22322204 + 22322205.

It is an arithmetic number, because the mean of its divisors is an integer number (22322205).

Almost surely, 2^44644409 is an apocalyptic number.

It is an amenable number.

44644409 is a deficient number, since it is larger than the sum of its proper divisors (1).

44644409 is an equidigital number, since it uses as much as digits as its factorization.

44644409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 55296, while the sum is 35.

The square root of 44644409 is about 6681.6471771562. The cubic root of 44644409 is about 354.7499634561.

The spelling of 44644409 in words is "forty-four million, six hundred forty-four thousand, four hundred nine".