2490610891 has 8 divisors (see below), whose sum is σ = 2644723440. Its totient is φ = 2337343488.

The previous prime is 2490610879. The next prime is 2490610919. The reversal of 2490610891 is 1980160942.

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

It is a cyclic number.

It is not a de Polignac number, because 2490610891 - 2²³ = 2482222283 is a prime.

It is a super-2 number, since 2×2490610891² = 12406285220735627762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2490610391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205206 + ... + 217003.

It is an arithmetic number, because the mean of its divisors is an integer number (330590430).

Almost surely, 2^2490610891 is an apocalyptic number.

2490610891 is a deficient number, since it is larger than the sum of its proper divisors (154112549).

2490610891 is a wasteful number, since it uses less digits than its factorization.

2490610891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422573.

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 2490610891 is about 49906.0205887025. The cubic root of 2490610891 is about 1355.5076126302.

The spelling of 2490610891 in words is "two billion, four hundred ninety million, six hundred ten thousand, eight hundred ninety-one".