44128997 has 8 divisors (see below), whose sum is σ = 49315392. Its totient is φ = 39138400.

The previous prime is 44128979. The next prime is 44129003. The reversal of 44128997 is 79982144.

44128997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 44128997 - 2⁸ = 44128741 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 (44128907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48473 + ... + 49374.

It is an arithmetic number, because the mean of its divisors is an integer number (6164424).

Almost surely, 2^44128997 is an apocalyptic number.

It is an amenable number.

44128997 is a deficient number, since it is larger than the sum of its proper divisors (5186395).

44128997 is a wasteful number, since it uses less digits than its factorization.

44128997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97899.

The product of its digits is 145152, while the sum is 44.

The square root of 44128997 is about 6642.9659791391. The cubic root of 44128997 is about 353.3795002173.

The spelling of 44128997 in words is "forty-four million, one hundred twenty-eight thousand, nine hundred ninety-seven".