440002020422 has 24 divisors (see below), whose sum is σ = 682090285968. Its totient is φ = 212869850160.

The previous prime is 440002020397. The next prime is 440002020439. The reversal of 440002020422 is 224020200044.

It is a junction number, because it is equal to n+sod(n) for n = 440002020394 and 440002020403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15125063 + ... + 15154125.

It is an arithmetic number, because the mean of its divisors is an integer number (28420428582).

Almost surely, 2^440002020422 is an apocalyptic number.

440002020422 is a deficient number, since it is larger than the sum of its proper divisors (242088265546).

440002020422 is a wasteful number, since it uses less digits than its factorization.

440002020422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37004 (or 36973 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 440002020422 its reverse (224020200044), we get a palindrome (664022220466).

The spelling of 440002020422 in words is "four hundred forty billion, two million, twenty thousand, four hundred twenty-two".