20238703988 has 12 divisors (see below), whose sum is σ = 35419151712. Its totient is φ = 10118946360.

The previous prime is 20238703937. The next prime is 20238704009. The reversal of 20238703988 is 88930783202.

It is a super-2 number, since 2×20238703988² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29681 + ... + 203367.

It is an arithmetic number, because the mean of its divisors is an integer number (2951595976).

Almost surely, 2^20238703988 is an apocalyptic number.

It is an amenable number.

20238703988 is a deficient number, since it is larger than the sum of its proper divisors (15180447724).

20238703988 is a wasteful number, since it uses less digits than its factorization.

20238703988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202822 (or 202820 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 50.

The spelling of 20238703988 in words is "twenty billion, two hundred thirty-eight million, seven hundred three thousand, nine hundred eighty-eight".