238974479832 has 128 divisors (see below), whose sum is σ = 655290155520. Its totient is φ = 72023808000.

The previous prime is 238974479747. The next prime is 238974479881.

It is a happy number.

238974479832 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62540482 + ... + 62544302.

It is an arithmetic number, because the mean of its divisors is an integer number (5119454340).

Almost surely, 2^238974479832 is an apocalyptic number.

238974479832 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 238974479832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (327645077760).

238974479832 is an abundant number, since it is smaller than the sum of its proper divisors (416315675688).

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

238974479832 is a wasteful number, since it uses less digits than its factorization.

238974479832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5065 (or 5061 counting only the distinct ones).

The product of its digits is 146313216, while the sum is 66.

The spelling of 238974479832 in words is "two hundred thirty-eight billion, nine hundred seventy-four million, four hundred seventy-nine thousand, eight hundred thirty-two".