2108662440 has 64 divisors (see below), whose sum is σ = 6332852160. Its totient is φ = 561699840.

The previous prime is 2108662433. The next prime is 2108662463. The reversal of 2108662440 is 442668012.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107472 + ... + 125568.

It is an arithmetic number, because the mean of its divisors is an integer number (98950815).

Almost surely, 2^2108662440 is an apocalyptic number.

2108662440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2108662440 is an abundant number, since it is smaller than the sum of its proper divisors (4224189720).

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

2108662440 is a wasteful number, since it uses less digits than its factorization.

2108662440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19082 (or 19078 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 2108662440 is about 45920.1746512358. The cubic root of 2108662440 is about 1282.3375336149.

The spelling of 2108662440 in words is "two billion, one hundred eight million, six hundred sixty-two thousand, four hundred forty".