440452252 has 24 divisors (see below), whose sum is σ = 818279280. Its totient is φ = 206726400.

The previous prime is 440452241. The next prime is 440452267. The reversal of 440452252 is 252254044.

It is a self number, because there is not a number n which added to its sum of digits gives 440452252.

It is a congruent number.

It is an unprimeable 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 7 ways as a sum of consecutive naturals, for example, 18127 + ... + 34777.

It is an arithmetic number, because the mean of its divisors is an integer number (34094970).

Almost surely, 2^440452252 is an apocalyptic number.

It is an amenable number.

440452252 is a deficient number, since it is larger than the sum of its proper divisors (377827028).

440452252 is a wasteful number, since it uses less digits than its factorization.

440452252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17061 (or 17059 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 28.

The square root of 440452252 is about 20986.9543288206. The cubic root of 440452252 is about 760.8509927479.

The spelling of 440452252 in words is "four hundred forty million, four hundred fifty-two thousand, two hundred fifty-two".