44428393 has 2 divisors, whose sum is σ = 44428394. Its totient is φ = 44428392.

The previous prime is 44428369. The next prime is 44428399. The reversal of 44428393 is 39382444.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34892649 + 9535744 = 5907^2 + 3088^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44428393 is a prime.

It is not a weakly prime, because it can be changed into another prime (44428399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22214196 + 22214197.

It is an arithmetic number, because the mean of its divisors is an integer number (22214197).

Almost surely, 2^44428393 is an apocalyptic number.

It is an amenable number.

44428393 is a deficient number, since it is larger than the sum of its proper divisors (1).

44428393 is an equidigital number, since it uses as much as digits as its factorization.

44428393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82944, while the sum is 37.

The square root of 44428393 is about 6665.4626996181. The cubic root of 44428393 is about 354.1768749138.

The spelling of 44428393 in words is "forty-four million, four hundred twenty-eight thousand, three hundred ninety-three".