44161669 has 2 divisors, whose sum is σ = 44161670. Its totient is φ = 44161668.

The previous prime is 44161651. The next prime is 44161673. The reversal of 44161669 is 96616144.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41796225 + 2365444 = 6465^2 + 1538^2 .

It is a cyclic number.

It is not a de Polignac number, because 44161669 - 2¹³ = 44153477 is a prime.

It is a super-2 number, since 2×44161669² = 3900506017731122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44161619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22080834 + 22080835.

It is an arithmetic number, because the mean of its divisors is an integer number (22080835).

Almost surely, 2^44161669 is an apocalyptic number.

It is an amenable number.

44161669 is a deficient number, since it is larger than the sum of its proper divisors (1).

44161669 is an equidigital number, since it uses as much as digits as its factorization.

44161669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 37.

The square root of 44161669 is about 6645.4246666410. The cubic root of 44161669 is about 353.4666898026.

The spelling of 44161669 in words is "forty-four million, one hundred sixty-one thousand, six hundred sixty-nine".