16720350 has 96 divisors (see below), whose sum is σ = 44997120. Its totient is φ = 4093440.

The previous prime is 16720349. The next prime is 16720357. The reversal of 16720350 is 5302761.

It is a self number, because there is not a number n which added to its sum of digits gives 16720350.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16720357) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 201409 + ... + 201491.

It is an arithmetic number, because the mean of its divisors is an integer number (468720).

Almost surely, 2^16720350 is an apocalyptic number.

16720350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16720350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22498560).

16720350 is an abundant number, since it is smaller than the sum of its proper divisors (28276770).

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

16720350 is a wasteful number, since it uses less digits than its factorization.

16720350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194 (or 189 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 16720350 is about 4089.0524574772. The cubic root of 16720350 is about 255.7104371646.

The spelling of 16720350 in words is "sixteen million, seven hundred twenty thousand, three hundred fifty".