238286540 has 12 divisors (see below), whose sum is σ = 500401776. Its totient is φ = 95314608.

The previous prime is 238286519. The next prime is 238286551. The reversal of 238286540 is 45682832.

It is a junction number, because it is equal to n+sod(n) for n = 238286494 and 238286503.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5957144 + ... + 5957183.

It is an arithmetic number, because the mean of its divisors is an integer number (41700148).

Almost surely, 2^238286540 is an apocalyptic number.

238286540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

238286540 is an abundant number, since it is smaller than the sum of its proper divisors (262115236).

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

238286540 is a wasteful number, since it uses less digits than its factorization.

238286540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11914336 (or 11914334 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 38.

The square root of 238286540 is about 15436.5326417560. The cubic root of 238286540 is about 619.9640457818.

The spelling of 238286540 in words is "two hundred thirty-eight million, two hundred eighty-six thousand, five hundred forty".