44413309 has 2 divisors, whose sum is σ = 44413310. Its totient is φ = 44413308.

The previous prime is 44413267. The next prime is 44413319. The reversal of 44413309 is 90331444.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32832900 + 11580409 = 5730^2 + 3403^2 .

It is a cyclic number.

It is not a de Polignac number, because 44413309 - 2¹³ = 44405117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44413319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22206654 + 22206655.

It is an arithmetic number, because the mean of its divisors is an integer number (22206655).

Almost surely, 2^44413309 is an apocalyptic number.

It is an amenable number.

44413309 is a deficient number, since it is larger than the sum of its proper divisors (1).

44413309 is an equidigital number, since it uses as much as digits as its factorization.

44413309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 44413309 is about 6664.3310992177. The cubic root of 44413309 is about 354.1367878708.

It can be divided in two parts, 4441 and 3309, that added together give a triangular number (7750 = T₁₂₄).

The spelling of 44413309 in words is "forty-four million, four hundred thirteen thousand, three hundred nine".