13400216 has 32 divisors (see below), whose sum is σ = 27332640. Its totient is φ = 6133248.

The previous prime is 13400209. The next prime is 13400227. The reversal of 13400216 is 61200431.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a junction number, because it is equal to n+sod(n) for n = 13400194 and 13400203.

It is a congruent number.

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, 3701 + ... + 6363.

It is an arithmetic number, because the mean of its divisors is an integer number (854145).

Almost surely, 2^13400216 is an apocalyptic number.

It is an amenable number.

13400216 is an abundant number, since it is smaller than the sum of its proper divisors (13932424).

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

13400216 is a wasteful number, since it uses less digits than its factorization.

13400216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2723 (or 2719 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 13400216 is about 3660.6305467774. The cubic root of 13400216 is about 237.5220500303.

Adding to 13400216 its reverse (61200431), we get a palindrome (74600647).

The spelling of 13400216 in words is "thirteen million, four hundred thousand, two hundred sixteen".