2117559040 has 36 divisors (see below), whose sum is σ = 5072218704. Its totient is φ = 847023104.

The previous prime is 2117559019. The next prime is 2117559047. The reversal of 2117559040 is 409557112.

It is a junction number, because it is equal to n+sod(n) for n = 2117558987 and 2117559005.

It is not an unprimeable number, because it can be changed into a prime (2117559047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 825892 + ... + 828451.

It is an arithmetic number, because the mean of its divisors is an integer number (140894964).

Almost surely, 2^2117559040 is an apocalyptic number.

2117559040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2117559040 is an abundant number, since it is smaller than the sum of its proper divisors (2954659664).

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

2117559040 is an equidigital number, since it uses as much as digits as its factorization.

2117559040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1654364 (or 1654350 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 34.

The square root of 2117559040 is about 46016.9429666943. The cubic root of 2117559040 is about 1284.1384283489.

The spelling of 2117559040 in words is "two billion, one hundred seventeen million, five hundred fifty-nine thousand, forty".