440252 has 6 divisors (see below), whose sum is σ = 770448. Its totient is φ = 220124.

The previous prime is 440239. The next prime is 440261. The reversal of 440252 is 252044.

It is a self number, because there is not a number n which added to its sum of digits gives 440252.

It is a congruent number.

It is an unprimeable number.

440252 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 (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55028 + ... + 55035.

It is an arithmetic number, because the mean of its divisors is an integer number (128408).

2⁴⁴⁰²⁵² is an apocalyptic number.

It is an amenable number.

440252 is a deficient number, since it is larger than the sum of its proper divisors (330196).

440252 is a wasteful number, since it uses less digits than its factorization.

440252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110067 (or 110065 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 440252 is about 663.5148830283. The cubic root of 440252 is about 76.0735668080.

Adding to 440252 its reverse (252044), we get a palindrome (692296).

The spelling of 440252 in words is "four hundred forty thousand, two hundred fifty-two".