252646 has 4 divisors (see below), whose sum is σ = 378972. Its totient is φ = 126322.

The previous prime is 252641. The next prime is 252667. The reversal of 252646 is 646252.

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

It is a self number, because there is not a number n which added to its sum of digits gives 252646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252641) by changing a digit.

252646 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 as a sum of consecutive naturals, namely, 63160 + ... + 63163.

It is an arithmetic number, because the mean of its divisors is an integer number (94743).

2²⁵²⁶⁴⁶ is an apocalyptic number.

252646 is a deficient number, since it is larger than the sum of its proper divisors (126326).

252646 is a wasteful number, since it uses less digits than its factorization.

252646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126325.

The product of its digits is 2880, while the sum is 25.

The square root of 252646 is about 502.6390354917. The cubic root of 252646 is about 63.2175230479.

Adding to 252646 its reverse (646252), we get a palindrome (898898).

It can be divided in two parts, 252 and 646, that added together give a palindrome (898).

The spelling of 252646 in words is "two hundred fifty-two thousand, six hundred forty-six".