16218396 has 36 divisors (see below), whose sum is σ = 41953912. Its totient is φ = 5279904.

The previous prime is 16218373. The next prime is 16218401. The reversal of 16218396 is 69381261.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 16218396.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3691 + ... + 6786.

Almost surely, 2^16218396 is an apocalyptic number.

It is an amenable number.

16218396 is an abundant number, since it is smaller than the sum of its proper divisors (25735516).

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

16218396 is a wasteful number, since it uses less digits than its factorization.

16218396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10530 (or 10525 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 16218396 is about 4027.2069725804. The cubic root of 16218396 is about 253.1255398251.

The spelling of 16218396 in words is "sixteen million, two hundred eighteen thousand, three hundred ninety-six".