20332016 has 30 divisors (see below), whose sum is σ = 40825512. Its totient is φ = 9808960.

The previous prime is 20331989. The next prime is 20332043. The reversal of 20332016 is 61023302.

It is an interprime number because it is at equal distance from previous prime (20331989) and next prime (20332043).

It is a junction number, because it is equal to n+sod(n) for n = 20331985 and 20332003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12701 + ... + 14211.

Almost surely, 2^20332016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20332016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20412756).

20332016 is an abundant number, since it is smaller than the sum of its proper divisors (20493496).

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

20332016 is a wasteful number, since it uses less digits than its factorization.

20332016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1577 (or 1542 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 20332016 is about 4509.1036803338. The cubic root of 20332016 is about 272.9355758655.

Adding to 20332016 its reverse (61023302), we get a palindrome (81355318).

The spelling of 20332016 in words is "twenty million, three hundred thirty-two thousand, sixteen".