4165538 has 16 divisors (see below), whose sum is σ = 6785856. Its totient is φ = 1906320.

The previous prime is 4165523. The next prime is 4165547. The reversal of 4165538 is 8355614.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2795 + ... + 4017.

It is an arithmetic number, because the mean of its divisors is an integer number (424116).

Almost surely, 2^4165538 is an apocalyptic number.

4165538 is a deficient number, since it is larger than the sum of its proper divisors (2620318).

4165538 is a wasteful number, since it uses less digits than its factorization.

4165538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1369.

The product of its digits is 14400, while the sum is 32.

The square root of 4165538 is about 2040.9649678522. The cubic root of 4165538 is about 160.9003665797.

The spelling of 4165538 in words is "four million, one hundred sixty-five thousand, five hundred thirty-eight".