13662208 has 48 divisors (see below), whose sum is σ = 31253040. Its totient is φ = 5849088.

The previous prime is 13662199. The next prime is 13662211. The reversal of 13662208 is 80226631.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13860 + ... + 14812.

It is an arithmetic number, because the mean of its divisors is an integer number (651105).

Almost surely, 2^13662208 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 13662208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15626520).

13662208 is an abundant number, since it is smaller than the sum of its proper divisors (17590832).

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

13662208 is an frugal number, since it uses more digits than its factorization.

13662208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 982 (or 962 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 13662208 is about 3696.2424162925. The cubic root of 13662208 is about 239.0600270552.

Adding to 13662208 its reverse (80226631), we get a palindrome (93888839).

The spelling of 13662208 in words is "thirteen million, six hundred sixty-two thousand, two hundred eight".