44381669 has 2 divisors, whose sum is σ = 44381670. Its totient is φ = 44381668.

The previous prime is 44381653. The next prime is 44381693. The reversal of 44381669 is 96618344.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36457444 + 7924225 = 6038^2 + 2815^2 .

It is a cyclic number.

It is not a de Polignac number, because 44381669 - 2⁴ = 44381653 is a prime.

It is a super-2 number, since 2×44381669² = 3939465086451122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44381969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22190834 + 22190835.

It is an arithmetic number, because the mean of its divisors is an integer number (22190835).

Almost surely, 2^44381669 is an apocalyptic number.

It is an amenable number.

44381669 is a deficient number, since it is larger than the sum of its proper divisors (1).

44381669 is an equidigital number, since it uses as much as digits as its factorization.

44381669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 41.

The square root of 44381669 is about 6661.9568446516. The cubic root of 44381669 is about 354.0526723203.

The spelling of 44381669 in words is "forty-four million, three hundred eighty-one thousand, six hundred sixty-nine".