238683840 has 112 divisors (see below), whose sum is σ = 765108960. Its totient is φ = 63037440.

The previous prime is 238683839. The next prime is 238683853. The reversal of 238683840 is 48386832.

It is a junction number, because it is equal to n+sod(n) for n = 238683792 and 238683801.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103500 + ... + 105780.

It is an arithmetic number, because the mean of its divisors is an integer number (6831330).

Almost surely, 2^238683840 is an apocalyptic number.

238683840 is a gapful number since it is divisible by the number (20) 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 238683840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (382554480).

238683840 is an abundant number, since it is smaller than the sum of its proper divisors (526425120).

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

238683840 is a wasteful number, since it uses less digits than its factorization.

238683840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2410 (or 2400 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 42.

The square root of 238683840 is about 15449.3961047026. The cubic root of 238683840 is about 620.3084140209.

The spelling of 238683840 in words is "two hundred thirty-eight million, six hundred eighty-three thousand, eight hundred forty".