422444002440 has 64 divisors (see below), whose sum is σ = 1274412139200. Its totient is φ = 112022388992.

The previous prime is 422444002433. The next prime is 422444002471. The reversal of 422444002440 is 44200444224.

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

It is a junction number, because it is equal to n+sod(n) for n = 422444002398 and 422444002407.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9811947 + ... + 9854906.

It is an arithmetic number, because the mean of its divisors is an integer number (19912689675).

Almost surely, 2^422444002440 is an apocalyptic number.

422444002440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

422444002440 is an abundant number, since it is smaller than the sum of its proper divisors (851968136760).

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

422444002440 is a wasteful number, since it uses less digits than its factorization.

422444002440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19667046 (or 19667042 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 30.

Adding to 422444002440 its reverse (44200444224), we get a palindrome (466644446664).

The spelling of 422444002440 in words is "four hundred twenty-two billion, four hundred forty-four million, two thousand, four hundred forty".