440143031412 has 96 divisors (see below), whose sum is σ = 1305786352640. Its totient is φ = 125595191520.

The previous prime is 440143031399. The next prime is 440143031413. The reversal of 440143031412 is 214130341044.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440143031413) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 225087 + ... + 964857.

Almost surely, 2^440143031412 is an apocalyptic number.

440143031412 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 440143031412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (652893176320).

440143031412 is an abundant number, since it is smaller than the sum of its proper divisors (865643321228).

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

440143031412 is a wasteful number, since it uses less digits than its factorization.

440143031412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740578 (or 740570 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 440143031412 its reverse (214130341044), we get a palindrome (654273372456).

The spelling of 440143031412 in words is "four hundred forty billion, one hundred forty-three million, thirty-one thousand, four hundred twelve".