2100290 has 16 divisors (see below), whose sum is σ = 3810240. Its totient is φ = 833520.

The previous prime is 2100277. The next prime is 2100313. The reversal of 2100290 is 920012.

It is a super-2 number, since 2×2100290² = 8822436168200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 635 + ... + 2145.

It is an arithmetic number, because the mean of its divisors is an integer number (238140).

2^2100290 is an apocalyptic number.

2100290 is a deficient number, since it is larger than the sum of its proper divisors (1709950).

2100290 is a wasteful number, since it uses less digits than its factorization.

2100290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1657.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 2100290 is about 1449.2377306709. The cubic root of 2100290 is about 128.0638109569.

The spelling of 2100290 in words is "two million, one hundred thousand, two hundred ninety".