440242031430030 has 64 divisors (see below), whose sum is σ = 1059225941790720. Its totient is φ = 117104099134464.

The previous prime is 440242031429953. The next prime is 440242031430031. The reversal of 440242031430030 is 30034130242044.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a self number, because there is not a number n which added to its sum of digits gives 440242031430030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440242031430031) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 54808542 + ... + 62325438.

It is an arithmetic number, because the mean of its divisors is an integer number (16550405340480).

Almost surely, 2^{440242031430030} is an apocalyptic number.

440242031430030 is an abundant number, since it is smaller than the sum of its proper divisors (618983910360690).

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

440242031430030 is a wasteful number, since it uses less digits than its factorization.

440242031430030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7521793.

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 440242031430030 its reverse (30034130242044), we get a palindrome (470276161672074).

The spelling of 440242031430030 in words is "four hundred forty trillion, two hundred forty-two billion, thirty-one million, four hundred thirty thousand, thirty".