12206816 has 48 divisors (see below), whose sum is σ = 26807760. Its totient is φ = 5437440.

The previous prime is 12206791. The next prime is 12206827. The reversal of 12206816 is 61860221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9746 + ... + 10926.

It is an arithmetic number, because the mean of its divisors is an integer number (558495).

Almost surely, 2^12206816 is an apocalyptic number.

12206816 is a gapful number since it is divisible by the number (16) 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 12206816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13403880).

12206816 is an abundant number, since it is smaller than the sum of its proper divisors (14600944).

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

12206816 is a wasteful number, since it uses less digits than its factorization.

12206816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1227 (or 1219 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 12206816 is about 3493.8254106352. The cubic root of 12206816 is about 230.2506152913.

The spelling of 12206816 in words is "twelve million, two hundred six thousand, eight hundred sixteen".