2090999458 has 8 divisors (see below), whose sum is σ = 3150196380. Its totient is φ = 1040934000.

The previous prime is 2090999401. The next prime is 2090999459. The reversal of 2090999458 is 8549990902.

It can be written as a sum of positive squares in 2 ways, for example, as 2074164849 + 16834609 = 45543^2 + 4103^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 2090999399 and 2090999408.

It is not an unprimeable number, because it can be changed into a prime (2090999459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2282293 + ... + 2283208.

Almost surely, 2^2090999458 is an apocalyptic number.

2090999458 is a deficient number, since it is larger than the sum of its proper divisors (1059196922).

2090999458 is a wasteful number, since it uses less digits than its factorization.

2090999458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4565732.

The product of its (nonzero) digits is 2099520, while the sum is 55.

The square root of 2090999458 is about 45727.4475342764. The cubic root of 2090999458 is about 1278.7470360269.

The spelling of 2090999458 in words is "two billion, ninety million, nine hundred ninety-nine thousand, four hundred fifty-eight".