4090290 has 16 divisors (see below), whose sum is σ = 9816768. Its totient is φ = 1090736.

The previous prime is 4090279. The next prime is 4090309. The reversal of 4090290 is 920904.

It is a self number, because there is not a number n which added to its sum of digits gives 4090290.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68142 + ... + 68201.

It is an arithmetic number, because the mean of its divisors is an integer number (613548).

Almost surely, 2^4090290 is an apocalyptic number.

4090290 is an abundant number, since it is smaller than the sum of its proper divisors (5726478).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4090290 is a wasteful number, since it uses less digits than its factorization.

4090290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136353.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 4090290 is about 2022.4465382304. The cubic root of 4090290 is about 159.9256164663.

The spelling of 4090290 in words is "four million, ninety thousand, two hundred ninety".