20328698 has 16 divisors (see below), whose sum is σ = 33161856. Its totient is φ = 9290160.

The previous prime is 20328697. The next prime is 20328701. The reversal of 20328698 is 89682302.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20328697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1118 + ... + 6473.

It is an arithmetic number, because the mean of its divisors is an integer number (2072616).

Almost surely, 2^20328698 is an apocalyptic number.

20328698 is a deficient number, since it is larger than the sum of its proper divisors (12833158).

20328698 is a wasteful number, since it uses less digits than its factorization.

20328698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7709.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 20328698 is about 4508.7357429772. The cubic root of 20328698 is about 272.9207281903.

The spelling of 20328698 in words is "twenty million, three hundred twenty-eight thousand, six hundred ninety-eight".