238805740 has 24 divisors (see below), whose sum is σ = 504398160. Its totient is φ = 94968768.

The previous prime is 238805729. The next prime is 238805773. The reversal of 238805740 is 47508832.

238805740 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 238805740.

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, 31050 + ... + 37969.

It is an arithmetic number, because the mean of its divisors is an integer number (21016590).

Almost surely, 2^238805740 is an apocalyptic number.

238805740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

238805740 is an abundant number, since it is smaller than the sum of its proper divisors (265592420).

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

238805740 is a wasteful number, since it uses less digits than its factorization.

238805740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69201 (or 69199 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 37.

The square root of 238805740 is about 15453.3407391412. The cubic root of 238805740 is about 620.4139968239.

The spelling of 238805740 in words is "two hundred thirty-eight million, eight hundred five thousand, seven hundred forty".