2492720839 has 16 divisors (see below), whose sum is σ = 2951769600. Its totient is φ = 2059644384.

The previous prime is 2492720833. The next prime is 2492720861. The reversal of 2492720839 is 9380272942.

It is not a de Polignac number, because 2492720839 - 2³ = 2492720831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2492720831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121852 + ... + 140830.

It is an arithmetic number, because the mean of its divisors is an integer number (184485600).

Almost surely, 2^2492720839 is an apocalyptic number.

2492720839 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

2492720839 is a deficient number, since it is larger than the sum of its proper divisors (459048761).

2492720839 is a wasteful number, since it uses less digits than its factorization.

2492720839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19662.

The product of its (nonzero) digits is 435456, while the sum is 46.

The square root of 2492720839 is about 49927.1553265355. The cubic root of 2492720839 is about 1355.8902822429.

The spelling of 2492720839 in words is "two billion, four hundred ninety-two million, seven hundred twenty thousand, eight hundred thirty-nine".