13409112 has 64 divisors (see below), whose sum is σ = 35251200. Its totient is φ = 4245120.

The previous prime is 13409111. The next prime is 13409113. The reversal of 13409112 is 21190431.

13409112 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13409111) and next prime (13409113).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13409111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49714 + ... + 49982.

It is an arithmetic number, because the mean of its divisors is an integer number (550800).

Almost surely, 2^13409112 is an apocalyptic number.

13409112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13409112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17625600).

13409112 is an abundant number, since it is smaller than the sum of its proper divisors (21842088).

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

13409112 is a wasteful number, since it uses less digits than its factorization.

13409112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376 (or 372 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 13409112 is about 3661.8454363886. The cubic root of 13409112 is about 237.5745996495.

Adding to 13409112 its reverse (21190431), we get a palindrome (34599543).

The spelling of 13409112 in words is "thirteen million, four hundred nine thousand, one hundred twelve".