2117240688 has 20 divisors (see below), whose sum is σ = 5469538568. Its totient is φ = 705746880.

The previous prime is 2117240647. The next prime is 2117240701. The reversal of 2117240688 is 8860427112.

It is a happy number.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22054543 + ... + 22054638.

Almost surely, 2^2117240688 is an apocalyptic number.

It is an amenable number.

2117240688 is an abundant number, since it is smaller than the sum of its proper divisors (3352297880).

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

2117240688 is a wasteful number, since it uses less digits than its factorization.

2117240688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44109192 (or 44109186 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 39.

The square root of 2117240688 is about 46013.4837629145. The cubic root of 2117240688 is about 1284.0740730357.

The spelling of 2117240688 in words is "two billion, one hundred seventeen million, two hundred forty thousand, six hundred eighty-eight".