16117326 has 64 divisors (see below), whose sum is σ = 38525760. Its totient is φ = 4976640.

The previous prime is 16117307. The next prime is 16117331. The reversal of 16117326 is 62371161.

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 16117326.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88956 + ... + 89136.

It is an arithmetic number, because the mean of its divisors is an integer number (601965).

Almost surely, 2^16117326 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16117326, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19262880).

16117326 is an abundant number, since it is smaller than the sum of its proper divisors (22408434).

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

16117326 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (16117325) it forms a Ruth-Aaron pair, since the sum of their prime factors is the same (306).

16117326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306 (or 300 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 16117326 is about 4014.6389625968. The cubic root of 16117326 is about 252.5986334916.

Adding to 16117326 its reverse (62371161), we get a palindrome (78488487).

The spelling of 16117326 in words is "sixteen million, one hundred seventeen thousand, three hundred twenty-six".