20038738423338 has 24 divisors (see below), whose sum is σ = 43734180943908. Its totient is φ = 6630823419072.

The previous prime is 20038738423321. The next prime is 20038738423351. The reversal of 20038738423338 is 83332483783002.

It is a happy number.

20038738423338 is a `hidden beast` number, since 20 + 0 + 3 + 8 + 7 + 384 + 233 + 3 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 18762351391809 + 1276387031529 = 4331553^2 + 1129773^2 .

It is a super-5 number, since 5×20038738423338⁵ (a number of 68 digits) contains 55555 as substring.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4063002081 + ... + 4063007012.

Almost surely, 2^{20038738423338} is an apocalyptic number.

20038738423338 is an abundant number, since it is smaller than the sum of its proper divisors (23695442520570).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20038738423338 is a wasteful number, since it uses less digits than its factorization.

20038738423338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8126009238 (or 8126009235 counting only the distinct ones).

The product of its (nonzero) digits is 13934592, while the sum is 54.

The spelling of 20038738423338 in words is "twenty trillion, thirty-eight billion, seven hundred thirty-eight million, four hundred twenty-three thousand, three hundred thirty-eight".