440242023434 has 8 divisors (see below), whose sum is σ = 660366463428. Its totient is φ = 220119868960.

The previous prime is 440242023349. The next prime is 440242023451. The reversal of 440242023434 is 434320242044.

It can be written as a sum of positive squares in 2 ways, for example, as 440159268025 + 82755409 = 663445^2 + 9097^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 440242023434.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41774 + ... + 939270.

Almost surely, 2^440242023434 is an apocalyptic number.

440242023434 is a deficient number, since it is larger than the sum of its proper divisors (220124439994).

440242023434 is a wasteful number, since it uses less digits than its factorization.

440242023434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1142760.

The product of its (nonzero) digits is 73728, while the sum is 32.

Adding to 440242023434 its reverse (434320242044), we get a palindrome (874562265478).

The spelling of 440242023434 in words is "four hundred forty billion, two hundred forty-two million, twenty-three thousand, four hundred thirty-four".