20328708 has 48 divisors (see below), whose sum is σ = 50328320. Its totient is φ = 6368544.

The previous prime is 20328701. The next prime is 20328713. The reversal of 20328708 is 80782302.

It is not an unprimeable number, because it can be changed into a prime (20328701) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36891 + ... + 37437.

Almost surely, 2^20328708 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 20328708, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25164160).

20328708 is an abundant number, since it is smaller than the sum of its proper divisors (29999612).

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

20328708 is a wasteful number, since it uses less digits than its factorization.

20328708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 736 (or 734 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 20328708 is about 4508.7368519354. The cubic root of 20328708 is about 272.9207729416.

The spelling of 20328708 in words is "twenty million, three hundred twenty-eight thousand, seven hundred eight".