12388542 has 32 divisors (see below), whose sum is σ = 25546752. Its totient is φ = 4003104.

The previous prime is 12388511. The next prime is 12388547. The reversal of 12388542 is 24588321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12388547) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 55443 + ... + 55665.

It is an arithmetic number, because the mean of its divisors is an integer number (798336).

Almost surely, 2^12388542 is an apocalyptic number.

12388542 is an abundant number, since it is smaller than the sum of its proper divisors (13158210).

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

12388542 is a wasteful number, since it uses less digits than its factorization.

12388542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472.

The product of its digits is 15360, while the sum is 33.

The square root of 12388542 is about 3519.7360696507. The cubic root of 12388542 is about 231.3875916510.

The spelling of 12388542 in words is "twelve million, three hundred eighty-eight thousand, five hundred forty-two".