2811398340 has 24 divisors (see below), whose sum is σ = 7871915520. Its totient is φ = 749706208.

The previous prime is 2811398329. The next prime is 2811398363. The reversal of 2811398340 is 438931182.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23428260 + ... + 23428379.

It is an arithmetic number, because the mean of its divisors is an integer number (327996480).

Almost surely, 2^2811398340 is an apocalyptic number.

2811398340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2811398340 is an abundant number, since it is smaller than the sum of its proper divisors (5060517180).

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

2811398340 is a wasteful number, since it uses less digits than its factorization.

2811398340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46856651 (or 46856649 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 2811398340 is about 53022.6210215979. The cubic root of 2811398340 is about 1411.3697167188.

The spelling of 2811398340 in words is "two billion, eight hundred eleven million, three hundred ninety-eight thousand, three hundred forty".