2117492700 has 72 divisors (see below), whose sum is σ = 6393007488. Its totient is φ = 540112320.

The previous prime is 2117492653. The next prime is 2117492701. The reversal of 2117492700 is 72947112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2117492701) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 146542 + ... + 160341.

Almost surely, 2^2117492700 is an apocalyptic number.

2117492700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2117492700 is an abundant number, since it is smaller than the sum of its proper divisors (4275514788).

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

2117492700 is a wasteful number, since it uses less digits than its factorization.

2117492700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306923 (or 306916 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 33.

The square root of 2117492700 is about 46016.2221395890. Note that the first 3 decimals coincide. The cubic root of 2117492700 is about 1284.1250181548.

The spelling of 2117492700 in words is "two billion, one hundred seventeen million, four hundred ninety-two thousand, seven hundred".