16389282 has 48 divisors (see below), whose sum is σ = 40582080. Its totient is φ = 4320576.

The previous prime is 16389277. The next prime is 16389283. The reversal of 16389282 is 28298361.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 16389282.

It is not an unprimeable number, because it can be changed into a prime (16389283) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 5944 + ... + 8252.

It is an arithmetic number, because the mean of its divisors is an integer number (845460).

Almost surely, 2^16389282 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16389282, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20291040).

16389282 is an abundant number, since it is smaller than the sum of its proper divisors (24192798).

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

16389282 is a wasteful number, since it uses less digits than its factorization.

16389282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2347 (or 2334 counting only the distinct ones).

The product of its digits is 41472, while the sum is 39.

The square root of 16389282 is about 4048.3678192575. The cubic root of 16389282 is about 254.0114591726.

The spelling of 16389282 in words is "sixteen million, three hundred eighty-nine thousand, two hundred eighty-two".