2791830940 has 12 divisors (see below), whose sum is σ = 5862845016. Its totient is φ = 1116732368.

The previous prime is 2791830887. The next prime is 2791830961. The reversal of 2791830940 is 490381972.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 69795754 + ... + 69795793.

It is an arithmetic number, because the mean of its divisors is an integer number (488570418).

Almost surely, 2^2791830940 is an apocalyptic number.

2791830940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2791830940 is an abundant number, since it is smaller than the sum of its proper divisors (3071014076).

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

2791830940 is a wasteful number, since it uses less digits than its factorization.

2791830940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139591556 (or 139591554 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 2791830940 is about 52837.7794764314. The cubic root of 2791830940 is about 1408.0877015522.

The spelling of 2791830940 in words is "two billion, seven hundred ninety-one million, eight hundred thirty thousand, nine hundred forty".