12011892 has 24 divisors (see below), whose sum is σ = 28106400. Its totient is φ = 3992736.

The previous prime is 12011873. The next prime is 12011903. The reversal of 12011892 is 29811021.

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, 3834 + ... + 6222.

It is an arithmetic number, because the mean of its divisors is an integer number (1171100).

Almost surely, 2^12011892 is an apocalyptic number.

12011892 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12011892 is an abundant number, since it is smaller than the sum of its proper divisors (16094508).

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

12011892 is a wasteful number, since it uses less digits than its factorization.

12011892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2815 (or 2813 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 24.

The square root of 12011892 is about 3465.8176524451. The cubic root of 12011892 is about 229.0184509964.

The spelling of 12011892 in words is "twelve million, eleven thousand, eight hundred ninety-two".