12242378 has 8 divisors (see below), whose sum is σ = 18378468. Its totient is φ = 6116224.

The previous prime is 12242359. The next prime is 12242423. The reversal of 12242378 is 87324221.

It can be written as a sum of positive squares in 2 ways, for example, as 11854249 + 388129 = 3443^2 + 623^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12242378.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3200 + ... + 5892.

Almost surely, 2^12242378 is an apocalyptic number.

12242378 is a deficient number, since it is larger than the sum of its proper divisors (6136090).

12242378 is a wasteful number, since it uses less digits than its factorization.

12242378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4968.

The product of its digits is 5376, while the sum is 29.

The square root of 12242378 is about 3498.9109734316. The cubic root of 12242378 is about 230.4739941455.

Adding to 12242378 its reverse (87324221), we get a palindrome (99566599).

The spelling of 12242378 in words is "twelve million, two hundred forty-two thousand, three hundred seventy-eight".