2117133240 has 64 divisors (see below), whose sum is σ = 6386947200. Its totient is φ = 561409152.

The previous prime is 2117133211. The next prime is 2117133247. The reversal of 2117133240 is 423317112.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 2117133240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2117133247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27802 + ... + 70761.

It is an arithmetic number, because the mean of its divisors is an integer number (99796050).

Almost surely, 2^2117133240 is an apocalyptic number.

2117133240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2117133240 is an abundant number, since it is smaller than the sum of its proper divisors (4269813960).

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

2117133240 is a wasteful number, since it uses less digits than its factorization.

2117133240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98756 (or 98752 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 2117133240 is about 46012.3161773019. The cubic root of 2117133240 is about 1284.0523508124.

The spelling of 2117133240 in words is "two billion, one hundred seventeen million, one hundred thirty-three thousand, two hundred forty".