2489820680 has 32 divisors (see below), whose sum is σ = 5931633240. Its totient is φ = 937344000.

The previous prime is 2489820677. The next prime is 2489820703. The reversal of 2489820680 is 860289842.

It can be written as a sum of positive squares in 4 ways, for example, as 2473868644 + 15952036 = 49738^2 + 3994^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1830071 + ... + 1831430.

Almost surely, 2^2489820680 is an apocalyptic number.

2489820680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2489820680 is an abundant number, since it is smaller than the sum of its proper divisors (3441812560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2489820680 is a wasteful number, since it uses less digits than its factorization.

2489820680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3661529 (or 3661525 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 47.

The square root of 2489820680 is about 49898.1029699527. The cubic root of 2489820680 is about 1355.3642407997.

The spelling of 2489820680 in words is "two billion, four hundred eighty-nine million, eight hundred twenty thousand, six hundred eighty".