13390312 has 32 divisors (see below), whose sum is σ = 27216000. Its totient is φ = 6139584.

The previous prime is 13390303. The next prime is 13390331. The reversal of 13390312 is 21309331.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20373 + ... + 21019.

It is an arithmetic number, because the mean of its divisors is an integer number (850500).

Almost surely, 2^13390312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13390312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13608000).

13390312 is an abundant number, since it is smaller than the sum of its proper divisors (13825688).

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

13390312 is a wasteful number, since it uses less digits than its factorization.

13390312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865 (or 861 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 22.

The square root of 13390312 is about 3659.2775243209. The cubic root of 13390312 is about 237.4635186809.

Adding to 13390312 its reverse (21309331), we get a palindrome (34699643).

The spelling of 13390312 in words is "thirteen million, three hundred ninety thousand, three hundred twelve".