440313312 has 24 divisors (see below), whose sum is σ = 1155822696. Its totient is φ = 146771072.

The previous prime is 440313301. The next prime is 440313319. The reversal of 440313312 is 213313044.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440313319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2293203 + ... + 2293394.

It is an arithmetic number, because the mean of its divisors is an integer number (48159279).

Almost surely, 2^440313312 is an apocalyptic number.

It is an amenable number.

440313312 is an abundant number, since it is smaller than the sum of its proper divisors (715509384).

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

440313312 is a wasteful number, since it uses less digits than its factorization.

440313312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4586610 (or 4586602 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 440313312 is about 20983.6439161553. The cubic root of 440313312 is about 760.7709812340.

Adding to 440313312 its reverse (213313044), we get a palindrome (653626356).

The spelling of 440313312 in words is "four hundred forty million, three hundred thirteen thousand, three hundred twelve".