4390165 has 32 divisors (see below), whose sum is σ = 6259680. Its totient is φ = 2924544.

The previous prime is 4390151. The next prime is 4390181. The reversal of 4390165 is 5610934.

It can be written as a sum of positive squares in 16 ways, for example, as 848241 + 3541924 = 921^2 + 1882^2 .

It is not a de Polignac number, because 4390165 - 2⁹ = 4389653 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31977 + ... + 32113.

It is an arithmetic number, because the mean of its divisors is an integer number (195615).

Almost surely, 2^4390165 is an apocalyptic number.

It is an amenable number.

4390165 is a deficient number, since it is larger than the sum of its proper divisors (1869515).

4390165 is a wasteful number, since it uses less digits than its factorization.

4390165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 4390165 is about 2095.2720587074. The cubic root of 4390165 is about 163.7420717565.

The spelling of 4390165 in words is "four million, three hundred ninety thousand, one hundred sixty-five".