2491838980 has 24 divisors (see below), whose sum is σ = 5508276480. Its totient is φ = 944275680.

The previous prime is 2491838977. The next prime is 2491838983. The reversal of 2491838980 is 898381942.

It is an interprime number because it is at equal distance from previous prime (2491838977) and next prime (2491838983).

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2491838983) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3278356 + ... + 3279115.

It is an arithmetic number, because the mean of its divisors is an integer number (229511520).

Almost surely, 2^2491838980 is an apocalyptic number.

2491838980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2491838980 is an abundant number, since it is smaller than the sum of its proper divisors (3016437500).

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

2491838980 is a wasteful number, since it uses less digits than its factorization.

2491838980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6557499 (or 6557497 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 52.

The square root of 2491838980 is about 49918.3230888218. The cubic root of 2491838980 is about 1355.7303706234.

The spelling of 2491838980 in words is "two billion, four hundred ninety-one million, eight hundred thirty-eight thousand, nine hundred eighty".