4444042165 has 16 divisors (see below), whose sum is σ = 5679205488. Its totient is φ = 3326749696.

The previous prime is 4444042159. The next prime is 4444042247. The reversal of 4444042165 is 5612404444.

It can be written as a sum of positive squares in 8 ways, for example, as 1030795236 + 3413246929 = 32106^2 + 58423^2 .

It is a cyclic number.

It is not a de Polignac number, because 4444042165 - 2¹³ = 4444033973 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4444042165.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136402 + ... + 165811.

It is an arithmetic number, because the mean of its divisors is an integer number (354950343).

Almost surely, 2^4444042165 is an apocalyptic number.

It is an amenable number.

4444042165 is a deficient number, since it is larger than the sum of its proper divisors (1235163323).

4444042165 is a wasteful number, since it uses less digits than its factorization.

4444042165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302408.

The product of its (nonzero) digits is 61440, while the sum is 34.

The square root of 4444042165 is about 66663.6495025587. The cubic root of 4444042165 is about 1644.0917760691.

The spelling of 4444042165 in words is "four billion, four hundred forty-four million, forty-two thousand, one hundred sixty-five".