440042234212 has 24 divisors (see below), whose sum is σ = 880102327104. Its totient is φ = 188585702112.

The previous prime is 440042234201. The next prime is 440042234257. The reversal of 440042234212 is 212432240044.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1576683 + ... + 1834669.

It is an arithmetic number, because the mean of its divisors is an integer number (36670930296).

Almost surely, 2^440042234212 is an apocalyptic number.

It is an amenable number.

440042234212 is an abundant number, since it is smaller than the sum of its proper divisors (440060092892).

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

440042234212 is a wasteful number, since it uses less digits than its factorization.

440042234212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318915 (or 318913 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 440042234212 its reverse (212432240044), we get a palindrome (652474474256).

The spelling of 440042234212 in words is "four hundred forty billion, forty-two million, two hundred thirty-four thousand, two hundred twelve".