12536406 has 24 divisors (see below), whose sum is σ = 27826344. Its totient is φ = 4076640.

The previous prime is 12536401. The next prime is 12536411. The reversal of 12536406 is 60463521.

12536406 is a `hidden beast` number, since 1 + 253 + 6 + 406 = 666.

It is an interprime number because it is at equal distance from previous prime (12536401) and next prime (12536411).

It is a super-2 number, since 2×12536406² = 314322950793672, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12536406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12536401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7756 + ... + 9231.

It is an arithmetic number, because the mean of its divisors is an integer number (1159431).

Almost surely, 2^12536406 is an apocalyptic number.

12536406 is an abundant number, since it is smaller than the sum of its proper divisors (15289938).

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

12536406 is a wasteful number, since it uses less digits than its factorization.

12536406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17036 (or 17033 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 12536406 is about 3540.6787484888. The cubic root of 12536406 is about 232.3045322087.

Adding to 12536406 its reverse (60463521), we get a palindrome (72999927).

The spelling of 12536406 in words is "twelve million, five hundred thirty-six thousand, four hundred six".