2091940692 has 12 divisors (see below), whose sum is σ = 4881194976. Its totient is φ = 697313560.

The previous prime is 2091940681. The next prime is 2091940709. The reversal of 2091940692 is 2960491902.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 87164184 + ... + 87164207.

It is an arithmetic number, because the mean of its divisors is an integer number (406766248).

Almost surely, 2^2091940692 is an apocalyptic number.

It is an amenable number.

2091940692 is an abundant number, since it is smaller than the sum of its proper divisors (2789254284).

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

2091940692 is a wasteful number, since it uses less digits than its factorization.

2091940692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174328398 (or 174328396 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 42.

The square root of 2091940692 is about 45737.7381600796. The cubic root of 2091940692 is about 1278.9388772432.

The spelling of 2091940692 in words is "two billion, ninety-one million, nine hundred forty thousand, six hundred ninety-two".