2126290 has 32 divisors (see below), whose sum is σ = 4170240. Its totient is φ = 779760.

The previous prime is 2126273. The next prime is 2126297. The reversal of 2126290 is 926212.

It is a happy number.

It is a super-2 number, since 2×2126290² = 9042218328200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2126297) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68575 + ... + 68605.

It is an arithmetic number, because the mean of its divisors is an integer number (130320).

2^2126290 is an apocalyptic number.

2126290 is a deficient number, since it is larger than the sum of its proper divisors (2043950).

2126290 is an equidigital number, since it uses as much as digits as its factorization.

2126290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95 (or 57 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 2126290 is about 1458.1803729306. The cubic root of 2126290 is about 128.5900895900.

The spelling of 2126290 in words is "two million, one hundred twenty-six thousand, two hundred ninety".