2491839324 has 72 divisors (see below), whose sum is σ = 6805412432. Its totient is φ = 764225280.

The previous prime is 2491839307. The next prime is 2491839349. The reversal of 2491839324 is 4239381942.

2491839324 is a `hidden beast` number, since 249 + 1 + 83 + 9 + 324 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 2491839324.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 137979 + ... + 154989.

Almost surely, 2^2491839324 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2491839324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3402706216).

2491839324 is an abundant number, since it is smaller than the sum of its proper divisors (4313573108).

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

2491839324 is a wasteful number, since it uses less digits than its factorization.

2491839324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17347 (or 17342 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The square root of 2491839324 is about 49918.3265344503. The cubic root of 2491839324 is about 1355.7304330099.

The spelling of 2491839324 in words is "two billion, four hundred ninety-one million, eight hundred thirty-nine thousand, three hundred twenty-four".