16720282 has 8 divisors (see below), whose sum is σ = 26555796. Its totient is φ = 7868352.

The previous prime is 16720279. The next prime is 16720289. The reversal of 16720282 is 28202761.

It can be written as a sum of positive squares in 2 ways, for example, as 16719921 + 361 = 4089^2 + 19^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 16720282.

It is not an unprimeable number, because it can be changed into a prime (16720289) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 245853 + ... + 245920.

Almost surely, 2^16720282 is an apocalyptic number.

16720282 is a deficient number, since it is larger than the sum of its proper divisors (9835514).

16720282 is a wasteful number, since it uses less digits than its factorization.

16720282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491792.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 16720282 is about 4089.0441425839. The cubic root of 16720282 is about 255.7100905145.

It can be divided in two parts, 167 and 20282, that added together give a square (20449 = 143²).

The spelling of 16720282 in words is "sixteen million, seven hundred twenty thousand, two hundred eighty-two".