12011384 has 128 divisors (see below), whose sum is σ = 31518720. Its totient is φ = 4147200.

The previous prime is 12011371. The next prime is 12011387. The reversal of 12011384 is 48311021.

12011384 = T₄₀₆ + T₄₀₇ + ... + T₅₁₇.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011387) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 324614 + ... + 324650.

It is an arithmetic number, because the mean of its divisors is an integer number (246240).

Almost surely, 2^12011384 is an apocalyptic number.

12011384 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12011384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15759360).

12011384 is an abundant number, since it is smaller than the sum of its proper divisors (19507336).

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

12011384 is a wasteful number, since it uses less digits than its factorization.

12011384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109 (or 105 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 12011384 is about 3465.7443644908. The cubic root of 12011384 is about 229.0152224456.

The spelling of 12011384 in words is "twelve million, eleven thousand, three hundred eighty-four".