12423426 has 16 divisors (see below), whose sum is σ = 25704000. Its totient is φ = 3998288.

The previous prime is 12423409. The next prime is 12423457. The reversal of 12423426 is 62432421.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12423396 and 12423405.

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, 35526 + ... + 35873.

It is an arithmetic number, because the mean of its divisors is an integer number (1606500).

Almost surely, 2^12423426 is an apocalyptic number.

12423426 is an abundant number, since it is smaller than the sum of its proper divisors (13280574).

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

12423426 is a wasteful number, since it uses less digits than its factorization.

12423426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71433.

The product of its digits is 2304, while the sum is 24.

The square root of 12423426 is about 3524.6880713050. The cubic root of 12423426 is about 231.6045706514.

Adding to 12423426 its reverse (62432421), we get a palindrome (74855847).

The spelling of 12423426 in words is "twelve million, four hundred twenty-three thousand, four hundred twenty-six".