3805090 has 16 divisors (see below), whose sum is σ = 7085880. Its totient is φ = 1469440.

The previous prime is 3805069. The next prime is 3805091. The reversal of 3805090 is 905083.

3805090 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2405601 + 1399489 = 1551^2 + 1183^2 .

It is not an unprimeable number, because it can be changed into a prime (3805091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6271 + ... + 6850.

Almost surely, 2^3805090 is an apocalyptic number.

3805090 is a deficient number, since it is larger than the sum of its proper divisors (3280790).

3805090 is a wasteful number, since it uses less digits than its factorization.

3805090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13157.

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

The square root of 3805090 is about 1950.6639895174. The cubic root of 3805090 is about 156.1187185280.

The spelling of 3805090 in words is "three million, eight hundred five thousand, ninety".