422455215440 has 40 divisors (see below), whose sum is σ = 982235704320. Its totient is φ = 168977384576.

The previous prime is 422455215431. The next prime is 422455215487. The reversal of 422455215440 is 44512554224.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 422455215394 and 422455215403.

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, 4972841 + ... + 5057079.

It is an arithmetic number, because the mean of its divisors is an integer number (24555892608).

Almost surely, 2^422455215440 is an apocalyptic number.

422455215440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

422455215440 is an abundant number, since it is smaller than the sum of its proper divisors (559780488880).

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

422455215440 is a wasteful number, since it uses less digits than its factorization.

422455215440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146939 (or 146933 counting only the distinct ones).

The product of its (nonzero) digits is 256000, while the sum is 38.

Adding to 422455215440 its reverse (44512554224), we get a palindrome (466967769664).

The spelling of 422455215440 in words is "four hundred twenty-two billion, four hundred fifty-five million, two hundred fifteen thousand, four hundred forty".