238493 has 4 divisors (see below), whose sum is σ = 252540. Its totient is φ = 224448.

The previous prime is 238481. The next prime is 238499. The reversal of 238493 is 394832.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 80089 + 158404 = 283^2 + 398^2 .

It is a cyclic number.

It is not a de Polignac number, because 238493 - 2⁴ = 238477 is a prime.

It is a super-2 number, since 2×238493² = 113757822098, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2⁵ + 3¹⁰ + 4⁵ + 8³ + 9³ + 3¹¹ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6998 + ... + 7031.

It is an arithmetic number, because the mean of its divisors is an integer number (63135).

2²³⁸⁴⁹³ is an apocalyptic number.

It is an amenable number.

238493 is a deficient number, since it is larger than the sum of its proper divisors (14047).

238493 is a wasteful number, since it uses less digits than its factorization.

238493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14046.

The product of its digits is 5184, while the sum is 29.

The square root of 238493 is about 488.3574510540. The cubic root of 238493 is about 62.0143047118.

The spelling of 238493 in words is "two hundred thirty-eight thousand, four hundred ninety-three".