238225 has 12 divisors (see below), whose sum is σ = 318556. Its totient is φ = 175680.

The previous prime is 238223. The next prime is 238229. The reversal of 238225 is 522832.

238225 = 43² + 44² + ... + 92².

It can be written as a sum of positive squares in 6 ways, for example, as 81 + 238144 = 9^2 + 488^2 .

It is not a de Polignac number, because 238225 - 2¹ = 238223 is a prime.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

238225 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 238196 and 238205.

It is not an unprimeable number, because it can be changed into a prime (238223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42 + ... + 691.

2²³⁸²²⁵ is an apocalyptic number.

238225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

238225 is a deficient number, since it is larger than the sum of its proper divisors (80331).

238225 is a wasteful number, since it uses less digits than its factorization.

238225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756 (or 751 counting only the distinct ones).

The product of its digits is 960, while the sum is 22.

The square root of 238225 is about 488.0829847475. The cubic root of 238225 is about 61.9910670446.

The spelling of 238225 in words is "two hundred thirty-eight thousand, two hundred twenty-five".