12246478 has 4 divisors (see below), whose sum is σ = 18369720. Its totient is φ = 6123238.

The previous prime is 12246473. The next prime is 12246503. The reversal of 12246478 is 87464221.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12246473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3061618 + ... + 3061621.

It is an arithmetic number, because the mean of its divisors is an integer number (4592430).

Almost surely, 2^12246478 is an apocalyptic number.

12246478 is a deficient number, since it is larger than the sum of its proper divisors (6123242).

12246478 is an equidigital number, since it uses as much as digits as its factorization.

12246478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6123241.

The product of its digits is 21504, while the sum is 34.

The square root of 12246478 is about 3499.4968209730. The cubic root of 12246478 is about 230.4997200273.

The spelling of 12246478 in words is "twelve million, two hundred forty-six thousand, four hundred seventy-eight".