238455 has 24 divisors (see below), whose sum is σ = 472992. Its totient is φ = 108864.

The previous prime is 238451. The next prime is 238463. The reversal of 238455 is 554832.

It is not a de Polignac number, because 238455 - 2² = 238451 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238451) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64 + ... + 693.

It is an arithmetic number, because the mean of its divisors is an integer number (19708).

2²³⁸⁴⁵⁵ is an apocalyptic number.

238455 is a deficient number, since it is larger than the sum of its proper divisors (234537).

238455 is a wasteful number, since it uses less digits than its factorization.

238455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775 (or 772 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 238455 is about 488.3185435758. The cubic root of 238455 is about 62.0110108783.

The spelling of 238455 in words is "two hundred thirty-eight thousand, four hundred fifty-five".