12056784 has 80 divisors (see below), whose sum is σ = 33188352. Its totient is φ = 3763584.

The previous prime is 12056777. The next prime is 12056789. The reversal of 12056784 is 48765021.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12056789) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73887 + ... + 74049.

Almost surely, 2^12056784 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12056784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16594176).

12056784 is an abundant number, since it is smaller than the sum of its proper divisors (21131568).

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

12056784 is a wasteful number, since it uses less digits than its factorization.

12056784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264 (or 258 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 12056784 is about 3472.2880064879. The cubic root of 12056784 is about 229.3033995844.

The spelling of 12056784 in words is "twelve million, fifty-six thousand, seven hundred eighty-four".