44397091 has 8 divisors (see below), whose sum is σ = 46868480. Its totient is φ = 41939208.

The previous prime is 44397043. The next prime is 44397097. The reversal of 44397091 is 19079344.

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 44397091 - 2⁹ = 44396579 is a prime.

It is a super-2 number, since 2×44397091² = 3942203378524562, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 44397091.

It is not an unprimeable number, because it can be changed into a prime (44397097) 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, 3790 + ... + 10156.

It is an arithmetic number, because the mean of its divisors is an integer number (5858560).

Almost surely, 2^44397091 is an apocalyptic number.

44397091 is a deficient number, since it is larger than the sum of its proper divisors (2471389).

44397091 is a wasteful number, since it uses less digits than its factorization.

44397091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6753.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 44397091 is about 6663.1142118382. The cubic root of 44397091 is about 354.0936769972.

It can be divided in two parts, 4 and 4397091, that added together give a triangular number (4397095 = T₂₉₆₅).

The spelling of 44397091 in words is "forty-four million, three hundred ninety-seven thousand, ninety-one".