12056742 has 16 divisors (see below), whose sum is σ = 26792880. Its totient is φ = 4018896.

The previous prime is 12056731. The next prime is 12056749. The reversal of 12056742 is 24765021.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12056749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111583 + ... + 111690.

It is an arithmetic number, because the mean of its divisors is an integer number (1674555).

Almost surely, 2^12056742 is an apocalyptic number.

12056742 is an abundant number, since it is smaller than the sum of its proper divisors (14736138).

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

12056742 is a wasteful number, since it uses less digits than its factorization.

12056742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223284 (or 223278 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 12056742 is about 3472.2819585973. The cubic root of 12056742 is about 229.3031333234.

The spelling of 12056742 in words is "twelve million, fifty-six thousand, seven hundred forty-two".