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252276 = 22321023

252276 has 12 divisors (see below), whose sum is σ = 588672. Its totient is φ = 84088.

The previous prime is 252253. The next prime is 252277. The reversal of 252276 is 672252.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252277) by changing a digit.

252276 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10500 + ... + 10523.

It is an arithmetic number, because the mean of its divisors is an integer number (49056).

2252276 is an apocalyptic number.

It is an amenable number.

252276 is an abundant number, since it is smaller than the sum of its proper divisors (336396).

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

252276 is a wasteful number, since it uses less digits than its factorization.

252276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21030 (or 21028 counting only the distinct ones).

The product of its digits is 1680, while the sum is 24.

The square root of 252276 is about 502.2708432708. The cubic root of 252276 is about 63.1866472886.

Subtracting from 252276 its sum of digits (24), we obtain a palindrome (252252).

It can be divided in two parts, 252 and 276, that added together give a triangular number (528 = T32).

The spelling of 252276 in words is "two hundred fifty-two thousand, two hundred seventy-six".

Divisors: 1 2 3 4 6 12 21023 42046 63069 84092 126138 252276