44171669 has 4 divisors (see below), whose sum is σ = 45694860. Its totient is φ = 42648480.

The previous prime is 44171663. The next prime is 44171671. The reversal of 44171669 is 96617144.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9796900 + 34374769 = 3130^2 + 5863^2 .

It is a cyclic number.

It is not a de Polignac number, because 44171669 - 2¹² = 44167573 is a prime.

It is a super-2 number, since 2×44171669² = 3902272684491122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44171663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 761552 + ... + 761609.

It is an arithmetic number, because the mean of its divisors is an integer number (11423715).

Almost surely, 2^44171669 is an apocalyptic number.

It is an amenable number.

44171669 is a deficient number, since it is larger than the sum of its proper divisors (1523191).

44171669 is a wasteful number, since it uses less digits than its factorization.

44171669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1523190.

The product of its digits is 36288, while the sum is 38.

The square root of 44171669 is about 6646.1770214161. The cubic root of 44171669 is about 353.4933675393.

The spelling of 44171669 in words is "forty-four million, one hundred seventy-one thousand, six hundred sixty-nine".