2090290 has 8 divisors (see below), whose sum is σ = 3762540. Its totient is φ = 836112.

The previous prime is 2090281. The next prime is 2090317. The reversal of 2090290 is 920902.

It can be written as a sum of positive squares in 2 ways, for example, as 2013561 + 76729 = 1419^2 + 277^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 104505 + ... + 104524.

2^2090290 is an apocalyptic number.

2090290 is a deficient number, since it is larger than the sum of its proper divisors (1672250).

2090290 is a wasteful number, since it uses less digits than its factorization.

2090290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209036.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 2090290 is about 1445.7835245983. The cubic root of 2090290 is about 127.8602397071.

The spelling of 2090290 in words is "two million, ninety thousand, two hundred ninety".