12340242 has 16 divisors (see below), whose sum is σ = 27422880. Its totient is φ = 4113396.

The previous prime is 12340199. The next prime is 12340271. The reversal of 12340242 is 24204321.

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114208 + ... + 114315.

It is an arithmetic number, because the mean of its divisors is an integer number (1713930).

Almost surely, 2^12340242 is an apocalyptic number.

12340242 is an abundant number, since it is smaller than the sum of its proper divisors (15082638).

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

12340242 is a wasteful number, since it uses less digits than its factorization.

12340242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228534 (or 228528 counting only the distinct ones).

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

The square root of 12340242 is about 3512.8680590082. The cubic root of 12340242 is about 231.0864914774.

Adding to 12340242 its reverse (24204321), we get a palindrome (36544563).

The spelling of 12340242 in words is "twelve million, three hundred forty thousand, two hundred forty-two".