238181240 has 48 divisors (see below), whose sum is σ = 589067640. Its totient is φ = 86609600.

The previous prime is 238181233. The next prime is 238181243. The reversal of 238181240 is 42181832.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238181243) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19766 + ... + 29445.

Almost surely, 2^238181240 is an apocalyptic number.

238181240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

238181240 is an abundant number, since it is smaller than the sum of its proper divisors (350886400).

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

238181240 is a wasteful number, since it uses less digits than its factorization.

238181240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49244 (or 49229 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 238181240 is about 15433.1215248245. The cubic root of 238181240 is about 619.8727106011.

The spelling of 238181240 in words is "two hundred thirty-eight million, one hundred eighty-one thousand, two hundred forty".