44416991 has 8 divisors (see below), whose sum is σ = 44919600. Its totient is φ = 43917120.

The previous prime is 44416987. The next prime is 44416993. The reversal of 44416991 is 19961444.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 44416991 - 2² = 44416987 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 (44416993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53165 + ... + 53993.

It is an arithmetic number, because the mean of its divisors is an integer number (5614950).

Almost surely, 2^44416991 is an apocalyptic number.

44416991 is a deficient number, since it is larger than the sum of its proper divisors (502609).

44416991 is a wasteful number, since it uses less digits than its factorization.

44416991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1369.

The product of its digits is 31104, while the sum is 38.

The square root of 44416991 is about 6664.6073402714. The cubic root of 44416991 is about 354.1465739435.

The spelling of 44416991 in words is "forty-four million, four hundred sixteen thousand, nine hundred ninety-one".