2110391340 has 48 divisors (see below), whose sum is σ = 6099717120. Its totient is φ = 544616640.

The previous prime is 2110391323. The next prime is 2110391341. The reversal of 2110391340 is 431930112.

It is a self number, because there is not a number n which added to its sum of digits gives 2110391340.

It is not an unprimeable number, because it can be changed into a prime (2110391341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 565450 + ... + 569169.

It is an arithmetic number, because the mean of its divisors is an integer number (127077440).

Almost surely, 2^2110391340 is an apocalyptic number.

2110391340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2110391340 is an abundant number, since it is smaller than the sum of its proper divisors (3989325780).

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

2110391340 is a wasteful number, since it uses less digits than its factorization.

2110391340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1134662 (or 1134660 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 2110391340 is about 45938.9958531964. The cubic root of 2110391340 is about 1282.6879022780.

The spelling of 2110391340 in words is "two billion, one hundred ten million, three hundred ninety-one thousand, three hundred forty".