12232378 has 4 divisors (see below), whose sum is σ = 18348570. Its totient is φ = 6116188.

The previous prime is 12232373. The next prime is 12232397. The reversal of 12232378 is 87323221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12201049 + 31329 = 3493^2 + 177^2 .

It is not an unprimeable number, because it can be changed into a prime (12232373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3058093 + ... + 3058096.

Almost surely, 2^12232378 is an apocalyptic number.

12232378 is a deficient number, since it is larger than the sum of its proper divisors (6116192).

12232378 is an equidigital number, since it uses as much as digits as its factorization.

12232378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6116191.

The product of its digits is 4032, while the sum is 28.

The square root of 12232378 is about 3497.4816654273. The cubic root of 12232378 is about 230.4112239943.

Adding to 12232378 its reverse (87323221), we get a palindrome (99555599).

The spelling of 12232378 in words is "twelve million, two hundred thirty-two thousand, three hundred seventy-eight".