44131399 has 16 divisors (see below), whose sum is σ = 48686400. Its totient is φ = 39755520.

The previous prime is 44131397. The next prime is 44131403. The reversal of 44131399 is 99313144.

It is a cyclic number.

It is not a de Polignac number, because 44131399 - 2¹ = 44131397 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 (44131391) 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 in 15 ways as a sum of consecutive naturals, for example, 126277 + ... + 126625.

It is an arithmetic number, because the mean of its divisors is an integer number (3042900).

Almost surely, 2^44131399 is an apocalyptic number.

44131399 is a deficient number, since it is larger than the sum of its proper divisors (4555001).

44131399 is a wasteful number, since it uses less digits than its factorization.

44131399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570.

The product of its digits is 11664, while the sum is 34.

The square root of 44131399 is about 6643.1467694158. The cubic root of 44131399 is about 353.3859117397.

The spelling of 44131399 in words is "forty-four million, one hundred thirty-one thousand, three hundred ninety-nine".