238888240 has 20 divisors (see below), whose sum is σ = 555415344. Its totient is φ = 95555264.

The previous prime is 238888231. The next prime is 238888253. The reversal of 238888240 is 42888832.

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1492972 + ... + 1493131.

Almost surely, 2^238888240 is an apocalyptic number.

238888240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

238888240 is an abundant number, since it is smaller than the sum of its proper divisors (316527104).

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

238888240 is a wasteful number, since it uses less digits than its factorization.

238888240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2986116 (or 2986110 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 43.

The square root of 238888240 is about 15456.0098343654. The cubic root of 238888240 is about 620.4854332164.

The spelling of 238888240 in words is "two hundred thirty-eight million, eight hundred eighty-eight thousand, two hundred forty".