12356742 has 16 divisors (see below), whose sum is σ = 25381872. Its totient is φ = 4007520.

The previous prime is 12356741. The next prime is 12356749. The reversal of 12356742 is 24765321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12356741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27609 + ... + 28052.

It is an arithmetic number, because the mean of its divisors is an integer number (1586367).

Almost surely, 2^12356742 is an apocalyptic number.

12356742 is an abundant number, since it is smaller than the sum of its proper divisors (13025130).

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

12356742 is a wasteful number, since it uses less digits than its factorization.

12356742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55703.

The product of its digits is 10080, while the sum is 30.

The square root of 12356742 is about 3515.2157828503. The cubic root of 12356742 is about 231.1894399977.

It can be divided in two parts, 123 and 56742, that added together give a palindrome (56865).

The spelling of 12356742 in words is "twelve million, three hundred fifty-six thousand, seven hundred forty-two".