20328051 has 8 divisors (see below), whose sum is σ = 27168400. Its totient is φ = 13519872.

The previous prime is 20328041. The next prime is 20328053. The reversal of 20328051 is 15082302.

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

It is not a de Polignac number, because 20328051 - 2¹⁵ = 20295283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20328053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6526 + ... + 9123.

It is an arithmetic number, because the mean of its divisors is an integer number (3396050).

Almost surely, 2^20328051 is an apocalyptic number.

20328051 is a deficient number, since it is larger than the sum of its proper divisors (6840349).

20328051 is a wasteful number, since it uses less digits than its factorization.

20328051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16085.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 20328051 is about 4508.6639928032. The cubic root of 20328051 is about 272.9178327502.

The spelling of 20328051 in words is "twenty million, three hundred twenty-eight thousand, fifty-one".