238728256004 has 48 divisors (see below), whose sum is σ = 492919311360. Its totient is φ = 98999470080.

The previous prime is 238728255991. The next prime is 238728256057. The reversal of 238728256004 is 400652827832.

It is a super-2 number, since 2×238728256004² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 238728256004.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11461952 + ... + 11482760.

It is an arithmetic number, because the mean of its divisors is an integer number (10269152320).

Almost surely, 2^238728256004 is an apocalyptic number.

It is an amenable number.

238728256004 is an abundant number, since it is smaller than the sum of its proper divisors (254191055356).

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

238728256004 is a wasteful number, since it uses less digits than its factorization.

238728256004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34068 (or 34066 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 47.

The spelling of 238728256004 in words is "two hundred thirty-eight billion, seven hundred twenty-eight million, two hundred fifty-six thousand, four".