238080021438 has 32 divisors (see below), whose sum is σ = 558890555904. Its totient is φ = 66184407072.

The previous prime is 238080021433. The next prime is 238080021449. The reversal of 238080021438 is 834120080832.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 238080021396 and 238080021405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238080021433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76600770 + ... + 76603877.

It is an arithmetic number, because the mean of its divisors is an integer number (17465329872).

Almost surely, 2^238080021438 is an apocalyptic number.

238080021438 is an abundant number, since it is smaller than the sum of its proper divisors (320810534466).

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

238080021438 is a wasteful number, since it uses less digits than its factorization.

238080021438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153204696.

The product of its (nonzero) digits is 73728, while the sum is 39.

The spelling of 238080021438 in words is "two hundred thirty-eight billion, eighty million, twenty-one thousand, four hundred thirty-eight".