4165090 has 16 divisors (see below), whose sum is σ = 7700472. Its totient is φ = 1620864.

The previous prime is 4165079. The next prime is 4165097. The reversal of 4165090 is 905614.

It can be written as a sum of positive squares in 4 ways, for example, as 4157521 + 7569 = 2039^2 + 87^2 .

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (4165097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5259 + ... + 5998.

Almost surely, 2^4165090 is an apocalyptic number.

4165090 is a deficient number, since it is larger than the sum of its proper divisors (3535382).

4165090 is a wasteful number, since it uses less digits than its factorization.

4165090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11301.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 4165090 is about 2040.8552128948. The cubic root of 4165090 is about 160.8945981412.

The spelling of 4165090 in words is "four million, one hundred sixty-five thousand, ninety".