238728813600 has 144 divisors (see below), whose sum is σ = 817960459680. Its totient is φ = 60310425600.

The previous prime is 238728813593. The next prime is 238728813629. The reversal of 238728813600 is 6318827832.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 238728813600.

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 23 ways as a sum of consecutive naturals, for example, 2572041 + ... + 2663240.

It is an arithmetic number, because the mean of its divisors is an integer number (5680280970).

Almost surely, 2^238728813600 is an apocalyptic number.

238728813600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

238728813600 is an abundant number, since it is smaller than the sum of its proper divisors (579231646080).

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

238728813600 is a wasteful number, since it uses less digits than its factorization.

238728813600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5235323 (or 5235310 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 48.

The spelling of 238728813600 in words is "two hundred thirty-eight billion, seven hundred twenty-eight million, eight hundred thirteen thousand, six hundred".