1922120868 has 12 divisors (see below), whose sum is σ = 4484948720. Its totient is φ = 640706952.

The previous prime is 1922120867. The next prime is 1922120873. The reversal of 1922120868 is 8680212291.

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

It is not an unprimeable number, because it can be changed into a prime (1922120867) 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, 80088358 + ... + 80088381.

Almost surely, 2^1922120868 is an apocalyptic number.

It is an amenable number.

1922120868 is an abundant number, since it is smaller than the sum of its proper divisors (2562827852).

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

1922120868 is a wasteful number, since it uses less digits than its factorization.

1922120868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160176746 (or 160176744 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 39.

The square root of 1922120868 is about 43841.9989051594. The cubic root of 1922120868 is about 1243.3504749502.

The spelling of 1922120868 in words is "one billion, nine hundred twenty-two million, one hundred twenty thousand, eight hundred sixty-eight".