422344131440 has 160 divisors (see below), whose sum is σ = 1263741972480. Its totient is φ = 127393228800.

The previous prime is 422344131439. The next prime is 422344131487. The reversal of 422344131440 is 44131443224.

It is a junction number, because it is equal to n+sod(n) for n = 422344131397 and 422344131406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 914885 + ... + 1296804.

It is an arithmetic number, because the mean of its divisors is an integer number (7898387328).

Almost surely, 2^422344131440 is an apocalyptic number.

422344131440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

422344131440 is an abundant number, since it is smaller than the sum of its proper divisors (841397841040).

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

422344131440 is a wasteful number, since it uses less digits than its factorization.

422344131440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2211751 (or 2211745 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 422344131440 its reverse (44131443224), we get a palindrome (466475574664).

The spelling of 422344131440 in words is "four hundred twenty-two billion, three hundred forty-four million, one hundred thirty-one thousand, four hundred forty".