238502381 has 16 divisors (see below), whose sum is σ = 263820480. Its totient is φ = 214220160.

The previous prime is 238502377. The next prime is 238502413. The reversal of 238502381 is 183205832.

It is a cyclic number.

It is not a de Polignac number, because 238502381 - 2² = 238502377 is a prime.

It is a super-2 number, since 2×238502381² = 113766771485338322, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238502081) 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, 184385 + ... + 185673.

It is an arithmetic number, because the mean of its divisors is an integer number (16488780).

Almost surely, 2^238502381 is an apocalyptic number.

It is an amenable number.

238502381 is a deficient number, since it is larger than the sum of its proper divisors (25318099).

238502381 is a wasteful number, since it uses less digits than its factorization.

238502381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1676.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 238502381 is about 15443.5222990094. The cubic root of 238502381 is about 620.1511780148.

The spelling of 238502381 in words is "two hundred thirty-eight million, five hundred two thousand, three hundred eighty-one".