238338228172 has 24 divisors (see below), whose sum is σ = 455220862992. Its totient is φ = 108285196800.

The previous prime is 238338228169. The next prime is 238338228217. The reversal of 238338228172 is 271822833832.

It is a super-3 number, since 3×238338228172³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1163229 + ... + 1352692.

It is an arithmetic number, because the mean of its divisors is an integer number (18967535958).

Almost surely, 2^238338228172 is an apocalyptic number.

238338228172 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

238338228172 is a deficient number, since it is larger than the sum of its proper divisors (216882634820).

238338228172 is a wasteful number, since it uses less digits than its factorization.

238338228172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2518089 (or 2518087 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 49.

The spelling of 238338228172 in words is "two hundred thirty-eight billion, three hundred thirty-eight million, two hundred twenty-eight thousand, one hundred seventy-two".