2011996 has 24 divisors (see below), whose sum is σ = 4056416. Its totient is φ = 855360.

The previous prime is 2011987. The next prime is 2012009. The reversal of 2011996 is 6991102.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4870 + ... + 5266.

2^2011996 is an apocalyptic number.

It is an amenable number.

2011996 is an abundant number, since it is smaller than the sum of its proper divisors (2044420).

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

2011996 is a wasteful number, since it uses less digits than its factorization.

2011996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589 (or 587 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 2011996 is about 1418.4484481292. The cubic root of 2011996 is about 126.2435032438.

It can be divided in two parts, 201 and 1996, that added together give a cube (2197 = 13³).

The spelling of 2011996 in words is "two million, eleven thousand, nine hundred ninety-six".