44008991 has 8 divisors (see below), whose sum is σ = 47604480. Its totient is φ = 40443552.

The previous prime is 44008981. The next prime is 44009003. The reversal of 44008991 is 19980044.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44008991 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 (44008901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4415 + ... + 10368.

It is an arithmetic number, because the mean of its divisors is an integer number (5950560).

Almost surely, 2^44008991 is an apocalyptic number.

44008991 is a deficient number, since it is larger than the sum of its proper divisors (3595489).

44008991 is a wasteful number, since it uses less digits than its factorization.

44008991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15025.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 44008991 is about 6633.9272682175. The cubic root of 44008991 is about 353.0588783812.

The spelling of 44008991 in words is "forty-four million, eight thousand, nine hundred ninety-one".