440028312 has 32 divisors (see below), whose sum is σ = 1100993280. Its totient is φ = 146553120.

The previous prime is 440028311. The next prime is 440028343. The reversal of 440028312 is 213820044.

It is a super-3 number, since 3×440028312³ (a number of 27 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440028311) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 24237 + ... + 38307.

It is an arithmetic number, because the mean of its divisors is an integer number (34406040).

Almost surely, 2^440028312 is an apocalyptic number.

It is an amenable number.

440028312 is an abundant number, since it is smaller than the sum of its proper divisors (660964968).

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

440028312 is a wasteful number, since it uses less digits than its factorization.

440028312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15383 (or 15379 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 440028312 is about 20976.8518133680. The cubic root of 440028312 is about 760.6068053160.

Adding to 440028312 its reverse (213820044), we get a palindrome (653848356).

The spelling of 440028312 in words is "four hundred forty million, twenty-eight thousand, three hundred twelve".