20328001 has 8 divisors (see below), whose sum is σ = 20802560. Its totient is φ = 19858608.

The previous prime is 20327969. The next prime is 20328013. The reversal of 20328001 is 10082302.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 20328001 - 2⁵ = 20327969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20328041) 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 7 ways as a sum of consecutive naturals, for example, 7315 + ... + 9703.

It is an arithmetic number, because the mean of its divisors is an integer number (2600320).

Almost surely, 2^20328001 is an apocalyptic number.

It is an amenable number.

20328001 is a deficient number, since it is larger than the sum of its proper divisors (474559).

20328001 is a wasteful number, since it uses less digits than its factorization.

20328001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2583.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 20328001 is about 4508.6584479200. The cubic root of 20328001 is about 272.9176089887.

The spelling of 20328001 in words is "twenty million, three hundred twenty-eight thousand, one".