44397128 has 16 divisors (see below), whose sum is σ = 83707260. Its totient is φ = 22075200.

The previous prime is 44397127. The next prime is 44397139. The reversal of 44397128 is 82179344.

It can be written as a sum of positive squares in 2 ways, for example, as 44382244 + 14884 = 6662^2 + 122^2 .

It is a super-2 number, since 2×44397128² = 3942209949296768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 44397091 and 44397100.

It is not an unprimeable number, because it can be changed into a prime (44397121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13883 + ... + 16778.

Almost surely, 2^44397128 is an apocalyptic number.

It is an amenable number.

44397128 is a deficient number, since it is larger than the sum of its proper divisors (39310132).

44397128 is a wasteful number, since it uses less digits than its factorization.

44397128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30848 (or 30844 counting only the distinct ones).

The product of its digits is 48384, while the sum is 38.

The square root of 44397128 is about 6663.1169883171. The cubic root of 44397128 is about 354.0937753629.

The spelling of 44397128 in words is "forty-four million, three hundred ninety-seven thousand, one hundred twenty-eight".