13390326 has 64 divisors (see below), whose sum is σ = 32409600. Its totient is φ = 4082400.

The previous prime is 13390303. The next prime is 13390331. The reversal of 13390326 is 62309331.

13390326 = 19² + 20² + ... + 342².

13390326 is a `hidden beast` number, since 1 + 339 + 0 + 326 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 13390326.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31596 + ... + 32016.

It is an arithmetic number, because the mean of its divisors is an integer number (506400).

Almost surely, 2^13390326 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13390326, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16204800).

13390326 is an abundant number, since it is smaller than the sum of its proper divisors (19019274).

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

13390326 is a wasteful number, since it uses less digits than its factorization.

13390326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482 (or 476 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 27.

The square root of 13390326 is about 3659.2794372663. The cubic root of 13390326 is about 237.4636014395.

Adding to 13390326 its reverse (62309331), we get a palindrome (75699657).

The spelling of 13390326 in words is "thirteen million, three hundred ninety thousand, three hundred twenty-six".