2491298082 has 144 divisors (see below), whose sum is σ = 7160425272. Its totient is φ = 618347520.

The previous prime is 2491298077. The next prime is 2491298087. The reversal of 2491298082 is 2808921942.

It is a happy number.

2491298082 is a `hidden beast` number, since 2 + 491 + 2 + 9 + 80 + 82 = 666.

It is an interprime number because it is at equal distance from previous prime (2491298077) and next prime (2491298087).

It can be written as a sum of positive squares in 4 ways, for example, as 2250458721 + 240839361 = 47439^2 + 15519^2 .

It is a super-2 number, since 2×2491298082² = 12413132266753757448, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2491298087) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 188532 + ... + 201312.

Almost surely, 2^2491298082 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2491298082, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3580212636).

2491298082 is an abundant number, since it is smaller than the sum of its proper divisors (4669127190).

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

2491298082 is a wasteful number, since it uses less digits than its factorization.

2491298082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12833 (or 12823 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The square root of 2491298082 is about 49912.9049645480. The cubic root of 2491298082 is about 1355.6322683895.

The spelling of 2491298082 in words is "two billion, four hundred ninety-one million, two hundred ninety-eight thousand, eighty-two".