12402342 has 32 divisors (see below), whose sum is σ = 27704160. Its totient is φ = 4112640.

The previous prime is 12402311. The next prime is 12402349. The reversal of 12402342 is 24320421.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12402349) 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, 12538 + ... + 13490.

It is an arithmetic number, because the mean of its divisors is an integer number (865755).

Almost surely, 2^12402342 is an apocalyptic number.

12402342 is an abundant number, since it is smaller than the sum of its proper divisors (15301818).

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

12402342 is a wasteful number, since it uses less digits than its factorization.

12402342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1205 (or 1199 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 12402342 is about 3521.6958982854. The cubic root of 12402342 is about 231.4734764911.

Adding to 12402342 its reverse (24320421), we get a palindrome (36722763).

The spelling of 12402342 in words is "twelve million, four hundred two thousand, three hundred forty-two".