12272426 has 4 divisors (see below), whose sum is σ = 18408642. Its totient is φ = 6136212.

The previous prime is 12272401. The next prime is 12272431. The reversal of 12272426 is 62427221.

12272426 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62427221 = 23 ⋅2714227.

It can be written as a sum of positive squares in only one way, i.e., 9916201 + 2356225 = 3149^2 + 1535^2 .

It is a super-2 number, since 2×12272426² = 301224879850952, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12272395 and 12272404.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3068105 + ... + 3068108.

Almost surely, 2^12272426 is an apocalyptic number.

12272426 is a deficient number, since it is larger than the sum of its proper divisors (6136216).

12272426 is an equidigital number, since it uses as much as digits as its factorization.

12272426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6136215.

The product of its digits is 2688, while the sum is 26.

The square root of 12272426 is about 3503.2022493713. The cubic root of 12272426 is about 230.6624004728.

Adding to 12272426 its reverse (62427221), we get a palindrome (74699647).

The spelling of 12272426 in words is "twelve million, two hundred seventy-two thousand, four hundred twenty-six".