238267281 has 32 divisors (see below), whose sum is σ = 385118208. Its totient is φ = 128082240.

The previous prime is 238267261. The next prime is 238267297. The reversal of 238267281 is 182762832.

It is not a de Polignac number, because 238267281 - 2¹⁰ = 238266257 is a prime.

It is a super-2 number, since 2×238267281² = 113542594390265922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (238267231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25420 + ... + 33506.

It is an arithmetic number, because the mean of its divisors is an integer number (12034944).

Almost surely, 2^238267281 is an apocalyptic number.

238267281 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

238267281 is a deficient number, since it is larger than the sum of its proper divisors (146850927).

238267281 is a wasteful number, since it uses less digits than its factorization.

238267281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8181.

The product of its digits is 64512, while the sum is 39.

The square root of 238267281 is about 15435.9088167817. The cubic root of 238267281 is about 619.9473429091.

The spelling of 238267281 in words is "two hundred thirty-eight million, two hundred sixty-seven thousand, two hundred eighty-one".