420340442322 has 8 divisors (see below), whose sum is σ = 840680884656. Its totient is φ = 140113480772.

The previous prime is 420340442321. The next prime is 420340442359. The reversal of 420340442322 is 223244043024.

420340442322 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

420340442322 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 420340442322.

It is not an unprimeable number, because it can be changed into a prime (420340442321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35028370188 + ... + 35028370199.

It is an arithmetic number, because the mean of its divisors is an integer number (105085110582).

Almost surely, 2^420340442322 is an apocalyptic number.

420340442322 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

420340442322 is a wasteful number, since it uses less digits than its factorization.

420340442322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70056740392.

The product of its (nonzero) digits is 36864, while the sum is 30.

Adding to 420340442322 its reverse (223244043024), we get a palindrome (643584485346).

The spelling of 420340442322 in words is "four hundred twenty billion, three hundred forty million, four hundred forty-two thousand, three hundred twenty-two".