252426 has 8 divisors (see below), whose sum is σ = 504864. Its totient is φ = 84140.

The previous prime is 252419. The next prime is 252431. The reversal of 252426 is 624252.

252426 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

252426 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

252426 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21030 + ... + 21041.

It is an arithmetic number, because the mean of its divisors is an integer number (63108).

2²⁵²⁴²⁶ is an apocalyptic number.

252426 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.

252426 is a wasteful number, since it uses less digits than its factorization.

252426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42076.

The product of its digits is 960, while the sum is 21.

The square root of 252426 is about 502.4201429083. The cubic root of 252426 is about 63.1991681245.

Subtracting from 252426 its sum of digits (21), we obtain a triangular number (252405 = T₇₁₀).

Adding to 252426 its reverse (624252), we get a palindrome (876678).

The spelling of 252426 in words is "two hundred fifty-two thousand, four hundred twenty-six".