2090242 has 32 divisors (see below), whose sum is σ = 4003200. Its totient is φ = 811440.

The previous prime is 2090239. The next prime is 2090251. The reversal of 2090242 is 2420902.

It is a happy number.

It is a super-2 number, since 2×2090242² = 8738223237128, which contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 7408 + ... + 7684.

It is an arithmetic number, because the mean of its divisors is an integer number (125100).

2^2090242 is an apocalyptic number.

2090242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2090242 is a deficient number, since it is larger than the sum of its proper divisors (1912958).

2090242 is a wasteful number, since it uses less digits than its factorization.

2090242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311 (or 297 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2090242 is about 1445.7669245075. The cubic root of 2090242 is about 127.8592610010.

It can be divided in two parts, 2090 and 242, that added together give a palindrome (2332).

The spelling of 2090242 in words is "two million, ninety thousand, two hundred forty-two".