44012399 has 4 divisors (see below), whose sum is σ = 44059536. Its totient is φ = 43965264.

The previous prime is 44012389. The next prime is 44012429. The reversal of 44012399 is 99321044.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 44012399 - 2¹² = 44008303 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 (44012389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22139 + ... + 24044.

It is an arithmetic number, because the mean of its divisors is an integer number (11014884).

Almost surely, 2^44012399 is an apocalyptic number.

44012399 is a deficient number, since it is larger than the sum of its proper divisors (47137).

44012399 is an equidigital number, since it uses as much as digits as its factorization.

44012399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47136.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 44012399 is about 6634.1841246682. The cubic root of 44012399 is about 353.0679916220.

The spelling of 44012399 in words is "forty-four million, twelve thousand, three hundred ninety-nine".