238380540 has 24 divisors (see below), whose sum is σ = 667465680. Its totient is φ = 63568128.

The previous prime is 238380539. The next prime is 238380553. The reversal of 238380540 is 45083832.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 1986445 + ... + 1986564.

It is an arithmetic number, because the mean of its divisors is an integer number (27811070).

Almost surely, 2^238380540 is an apocalyptic number.

238380540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

238380540 is an abundant number, since it is smaller than the sum of its proper divisors (429085140).

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

238380540 is a wasteful number, since it uses less digits than its factorization.

238380540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3973021 (or 3973019 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 238380540 is about 15439.5770667464. The cubic root of 238380540 is about 620.0455568328.

The spelling of 238380540 in words is "two hundred thirty-eight million, three hundred eighty thousand, five hundred forty".