2490985841 has 4 divisors (see below), whose sum is σ = 2533206000. Its totient is φ = 2448765684.

The previous prime is 2490985807. The next prime is 2490985867. The reversal of 2490985841 is 1485890942.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2490985841 - 2¹⁰ = 2490984817 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2490985841.

It is not an unprimeable number, because it can be changed into a prime (2490981841) 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 3 ways as a sum of consecutive naturals, for example, 21109991 + ... + 21110108.

It is an arithmetic number, because the mean of its divisors is an integer number (633301500).

Almost surely, 2^2490985841 is an apocalyptic number.

It is an amenable number.

2490985841 is a deficient number, since it is larger than the sum of its proper divisors (42220159).

2490985841 is an equidigital number, since it uses as much as digits as its factorization.

2490985841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42220158.

The product of its (nonzero) digits is 829440, while the sum is 50.

The square root of 2490985841 is about 49909.7770081174. Note that the first 3 decimals coincide. The cubic root of 2490985841 is about 1355.5756310267.

The spelling of 2490985841 in words is "two billion, four hundred ninety million, nine hundred eighty-five thousand, eight hundred forty-one".