2019992 has 16 divisors (see below), whose sum is σ = 4079040. Its totient is φ = 932256.

The previous prime is 2019977. The next prime is 2020001. The reversal of 2019992 is 2999102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9608 + ... + 9815.

It is an arithmetic number, because the mean of its divisors is an integer number (254940).

2^2019992 is an apocalyptic number.

It is an amenable number.

2019992 is an abundant number, since it is smaller than the sum of its proper divisors (2059048).

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

2019992 is a wasteful number, since it uses less digits than its factorization.

2019992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19442 (or 19438 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 32.

The square root of 2019992 is about 1421.2642259622. The cubic root of 2019992 is about 126.4105196073.

The spelling of 2019992 in words is "two million, nineteen thousand, nine hundred ninety-two".