20020018384 has 20 divisors (see below), whose sum is σ = 38792356416. Its totient is φ = 10009087712.

The previous prime is 20020018379. The next prime is 20020018387. The reversal of 20020018384 is 48381002002.

It is a super-2 number, since 2×20020018384² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020018387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142767 + ... + 245809.

Almost surely, 2^20020018384 is an apocalyptic number.

It is an amenable number.

20020018384 is a deficient number, since it is larger than the sum of its proper divisors (18772338032).

20020018384 is a wasteful number, since it uses less digits than its factorization.

20020018384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115194 (or 115188 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The spelling of 20020018384 in words is "twenty billion, twenty million, eighteen thousand, three hundred eighty-four".