238316481 has 12 divisors (see below), whose sum is σ = 370714708. Its totient is φ = 146656224.

The previous prime is 238316471. The next prime is 238316497. The reversal of 238316481 is 184613832.

238316481 is a `hidden beast` number, since 2 + 3 + 8 + 3 + 1 + 648 + 1 = 666.

238316481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 121352256 + 116964225 = 11016^2 + 10815^2 .

It is not a de Polignac number, because 238316481 - 2⁹ = 238315969 is a prime.

It is a super-2 number, since 2×238316481² = 113589490232446722, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (238316471) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1018330 + ... + 1018563.

Almost surely, 2^238316481 is an apocalyptic number.

It is an amenable number.

238316481 is a deficient number, since it is larger than the sum of its proper divisors (132398227).

238316481 is a wasteful number, since it uses less digits than its factorization.

238316481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2036912 (or 2036909 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 238316481 is about 15437.5024210524. The cubic root of 238316481 is about 619.9900111120.

The spelling of 238316481 in words is "two hundred thirty-eight million, three hundred sixteen thousand, four hundred eighty-one".