440504431213252 has 48 divisors (see below), whose sum is σ = 882082757791872. Its totient is φ = 188557597509120.

The previous prime is 440504431213243. The next prime is 440504431213291. The reversal of 440504431213252 is 252312134405044.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99029238 + ... + 103381810.

It is an arithmetic number, because the mean of its divisors is an integer number (18376724120664).

Almost surely, 2^{440504431213252} is an apocalyptic number.

It is an amenable number.

440504431213252 is an abundant number, since it is smaller than the sum of its proper divisors (441578326578620).

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

440504431213252 is a wasteful number, since it uses less digits than its factorization.

440504431213252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4356988 (or 4356986 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 40.

Adding to 440504431213252 its reverse (252312134405044), we get a palindrome (692816565618296).

The spelling of 440504431213252 in words is "four hundred forty trillion, five hundred four billion, four hundred thirty-one million, two hundred thirteen thousand, two hundred fifty-two".