422401406334432 has 72 divisors (see below), whose sum is σ = 1289832865785576. Its totient is φ = 120686116094208.

The previous prime is 422401406334421. The next prime is 422401406334433. The reversal of 422401406334432 is 234433604104224.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422401406334433) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44898103963 + ... + 44898113370.

It is an arithmetic number, because the mean of its divisors is an integer number (17914345358133).

Almost surely, 2^{422401406334432} is an apocalyptic number.

422401406334432 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

422401406334432 is an abundant number, since it is smaller than the sum of its proper divisors (867431459451144).

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

422401406334432 is a wasteful number, since it uses less digits than its factorization.

422401406334432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89796217360 (or 89796217345 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 42.

The spelling of 422401406334432 in words is "four hundred twenty-two trillion, four hundred one billion, four hundred six million, three hundred thirty-four thousand, four hundred thirty-two".