420322906842 has 8 divisors (see below), whose sum is σ = 840645813696. Its totient is φ = 140107635612.

The previous prime is 420322906763. The next prime is 420322906849. The reversal of 420322906842 is 248609223024.

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

420322906842 is an admirable number.

It is a super-2 number, since 2×420322906842² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 420322906794 and 420322906803.

It is not an unprimeable number, because it can be changed into a prime (420322906849) 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, 35026908898 + ... + 35026908909.

It is an arithmetic number, because the mean of its divisors is an integer number (105080726712).

Almost surely, 2^420322906842 is an apocalyptic number.

420322906842 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.

420322906842 is a wasteful number, since it uses less digits than its factorization.

420322906842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70053817812.

The product of its (nonzero) digits is 331776, while the sum is 42.

The spelling of 420322906842 in words is "four hundred twenty billion, three hundred twenty-two million, nine hundred six thousand, eight hundred forty-two".