238238540 has 12 divisors (see below), whose sum is σ = 500300976. Its totient is φ = 95295408.

The previous prime is 238238537. The next prime is 238238557. The reversal of 238238540 is 45832832.

It is a self number, because there is not a number n which added to its sum of digits gives 238238540.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5955944 + ... + 5955983.

It is an arithmetic number, because the mean of its divisors is an integer number (41691748).

Almost surely, 2^238238540 is an apocalyptic number.

238238540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

238238540 is an abundant number, since it is smaller than the sum of its proper divisors (262062436).

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

238238540 is a wasteful number, since it uses less digits than its factorization.

238238540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11911936 (or 11911934 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 35.

The square root of 238238540 is about 15434.9778101557. The cubic root of 238238540 is about 619.9224148494.

The spelling of 238238540 in words is "two hundred thirty-eight million, two hundred thirty-eight thousand, five hundred forty".