420332430220340 has 48 divisors (see below), whose sum is σ = 972292350556800. Its totient is φ = 151364193751680.

The previous prime is 420332430220333. The next prime is 420332430220397. The reversal of 420332430220340 is 43022034233024.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 420332430220297 and 420332430220306.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9274744115 + ... + 9274789434.

It is an arithmetic number, because the mean of its divisors is an integer number (20256090636600).

Almost surely, 2^{420332430220340} is an apocalyptic number.

It is an amenable number.

420332430220340 is an abundant number, since it is smaller than the sum of its proper divisors (551959920336460).

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

420332430220340 is a wasteful number, since it uses less digits than its factorization.

420332430220340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18549533672 (or 18549533670 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 32.

Adding to 420332430220340 its reverse (43022034233024), we get a palindrome (463354464453364).

The spelling of 420332430220340 in words is "four hundred twenty trillion, three hundred thirty-two billion, four hundred thirty million, two hundred twenty thousand, three hundred forty".