444252165 has 32 divisors (see below), whose sum is σ = 838557696. Its totient is φ = 196534080.

The previous prime is 444252161. The next prime is 444252169. The reversal of 444252165 is 561252444.

It is an interprime number because it is at equal distance from previous prime (444252161) and next prime (444252169).

It is not a de Polignac number, because 444252165 - 2² = 444252161 is a prime.

It is a super-3 number, since 3×444252165³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444252161) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64987 + ... + 71496.

It is an arithmetic number, because the mean of its divisors is an integer number (26204928).

Almost surely, 2^444252165 is an apocalyptic number.

It is an amenable number.

444252165 is a deficient number, since it is larger than the sum of its proper divisors (394305531).

444252165 is a wasteful number, since it uses less digits than its factorization.

444252165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136529.

The product of its digits is 38400, while the sum is 33.

The square root of 444252165 is about 21077.2902670149. The cubic root of 444252165 is about 763.0327599851.

The spelling of 444252165 in words is "four hundred forty-four million, two hundred fifty-two thousand, one hundred sixty-five".