13112406 has 48 divisors (see below), whose sum is σ = 30545424. Its totient is φ = 4050432.

The previous prime is 13112383. The next prime is 13112417. The reversal of 13112406 is 60421131.

It is a happy number.

It is a super-2 number, since 2×13112406² = 343870382217672, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22045 + ... + 22631.

It is an arithmetic number, because the mean of its divisors is an integer number (636363).

Almost surely, 2^13112406 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13112406, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15272712).

13112406 is an abundant number, since it is smaller than the sum of its proper divisors (17433018).

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

13112406 is a wasteful number, since it uses less digits than its factorization.

13112406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685 (or 682 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 13112406 is about 3621.1056322621. The cubic root of 13112406 is about 235.8092277120.

Adding to 13112406 its reverse (60421131), we get a palindrome (73533537).

The spelling of 13112406 in words is "thirteen million, one hundred twelve thousand, four hundred six".