16720200 has 144 divisors (see below), whose sum is σ = 64222080. Its totient is φ = 3818880.

The previous prime is 16720199. The next prime is 16720217. The reversal of 16720200 is 202761.

It is a happy number.

16720200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 11937 + ... + 13263.

Almost surely, 2^16720200 is an apocalyptic number.

16720200 is a gapful number since it is divisible by the number (10) 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 16720200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32111040).

16720200 is an abundant number, since it is smaller than the sum of its proper divisors (47501880).

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

16720200 is a wasteful number, since it uses less digits than its factorization.

16720200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1356 (or 1344 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 16720200 is about 4089.0341157784. The cubic root of 16720200 is about 255.7096724940.

Adding to 16720200 its reverse (202761), we get a palindrome (16922961).

The spelling of 16720200 in words is "sixteen million, seven hundred twenty thousand, two hundred".