252438 has 8 divisors (see below), whose sum is σ = 504888. Its totient is φ = 84144.

The previous prime is 252431. The next prime is 252443. The reversal of 252438 is 834252.

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

252438 is an admirable number.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 252438.

It is not an unprimeable number, because it can be changed into a prime (252431) 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, 21031 + ... + 21042.

It is an arithmetic number, because the mean of its divisors is an integer number (63111).

2²⁵²⁴³⁸ is an apocalyptic number.

252438 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

252438 is a wasteful number, since it uses less digits than its factorization.

252438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42078.

The product of its digits is 1920, while the sum is 24.

The square root of 252438 is about 502.4320849627. The cubic root of 252438 is about 63.2001695771.

The spelling of 252438 in words is "two hundred fifty-two thousand, four hundred thirty-eight".