238226481 has 16 divisors (see below), whose sum is σ = 353824320. Its totient is φ = 158414400.

The previous prime is 238226477. The next prime is 238226489. The reversal of 238226481 is 184622832.

238226481 is a `hidden beast` number, since 2 + 3 + 8 + 2 + 2 + 648 + 1 = 666.

It is not a de Polignac number, because 238226481 - 2² = 238226477 is a prime.

It is a super-2 number, since 2×238226481² = 113503712499286722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (238226489) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175 + ... + 21828.

It is an arithmetic number, because the mean of its divisors is an integer number (22114020).

Almost surely, 2^238226481 is an apocalyptic number.

It is an amenable number.

238226481 is a deficient number, since it is larger than the sum of its proper divisors (115597839).

238226481 is a wasteful number, since it uses less digits than its factorization.

238226481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22413 (or 22407 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The square root of 238226481 is about 15434.5871664907. The cubic root of 238226481 is about 619.9119550660.

It can be divided in two parts, 23822 and 6481, that added together give a palindrome (30303).

The spelling of 238226481 in words is "two hundred thirty-eight million, two hundred twenty-six thousand, four hundred eighty-one".