252442 has 8 divisors (see below), whose sum is σ = 382356. Its totient is φ = 124992.

The previous prime is 252431. The next prime is 252443. The reversal of 252442 is 244252.

It can be written as a sum of positive squares in 2 ways, for example, as 168921 + 83521 = 411^2 + 289^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (252443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 333 + ... + 784.

2²⁵²⁴⁴² is an apocalyptic number.

252442 is a deficient number, since it is larger than the sum of its proper divisors (129914).

252442 is a wasteful number, since it uses less digits than its factorization.

252442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1232.

The product of its digits is 640, while the sum is 19.

The square root of 252442 is about 502.4360655845. The cubic root of 252442 is about 63.2005033875.

Adding to 252442 its reverse (244252), we get a palindrome (496694).

The spelling of 252442 in words is "two hundred fifty-two thousand, four hundred forty-two".