20384642235 has 8 divisors (see below), whose sum is σ = 32615427600. Its totient is φ = 10871809184.

The previous prime is 20384642231. The next prime is 20384642237. The reversal of 20384642235 is 53224648302.

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 20384642235 - 2² = 20384642231 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20384642193 and 20384642202.

It is not an unprimeable number, because it can be changed into a prime (20384642231) 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, 679488060 + ... + 679488089.

It is an arithmetic number, because the mean of its divisors is an integer number (4076928450).

Almost surely, 2^20384642235 is an apocalyptic number.

20384642235 is a deficient number, since it is larger than the sum of its proper divisors (12230785365).

20384642235 is a wasteful number, since it uses less digits than its factorization.

20384642235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1358976157.

The product of its (nonzero) digits is 276480, while the sum is 39.

The spelling of 20384642235 in words is "twenty billion, three hundred eighty-four million, six hundred forty-two thousand, two hundred thirty-five".