2491083439 has 12 divisors (see below), whose sum is σ = 2746394728. Its totient is φ = 2244921840.

The previous prime is 2491083431. The next prime is 2491083533. The reversal of 2491083439 is 9343801942.

It is not a de Polignac number, because 2491083439 - 2³ = 2491083431 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2491083395 and 2491083404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2491083431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1178994 + ... + 1181104.

Almost surely, 2^2491083439 is an apocalyptic number.

2491083439 is a deficient number, since it is larger than the sum of its proper divisors (255311289).

2491083439 is an frugal number, since it uses more digits than its factorization.

2491083439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4278 (or 2167 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 2491083439 is about 49910.7547428407. The cubic root of 2491083439 is about 1355.5933348263.

The spelling of 2491083439 in words is "two billion, four hundred ninety-one million, eighty-three thousand, four hundred thirty-nine".