440021230430 has 16 divisors (see below), whose sum is σ = 838628698320. Its totient is φ = 165655051392.

The previous prime is 440021230403. The next prime is 440021230469. The reversal of 440021230430 is 34032120044.

It is a junction number, because it is equal to n+sod(n) for n = 440021230396 and 440021230405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1294179920 + ... + 1294180259.

It is an arithmetic number, because the mean of its divisors is an integer number (52414293645).

Almost surely, 2^440021230430 is an apocalyptic number.

440021230430 is a deficient number, since it is larger than the sum of its proper divisors (398607467890).

440021230430 is a wasteful number, since it uses less digits than its factorization.

440021230430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2588360203.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 440021230430 its reverse (34032120044), we get a palindrome (474053350474).

The spelling of 440021230430 in words is "four hundred forty billion, twenty-one million, two hundred thirty thousand, four hundred thirty".