420324340252 has 12 divisors (see below), whose sum is σ = 738807982920. Its totient is φ = 209236345136.

The previous prime is 420324340147. The next prime is 420324340259. The reversal of 420324340252 is 252043423024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420324340259) 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, 231455227 + ... + 231457042.

It is an arithmetic number, because the mean of its divisors is an integer number (61567331910).

Almost surely, 2^420324340252 is an apocalyptic number.

It is an amenable number.

420324340252 is a deficient number, since it is larger than the sum of its proper divisors (318483642668).

420324340252 is a wasteful number, since it uses less digits than its factorization.

420324340252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462912500 (or 462912498 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 31.

Adding to 420324340252 its reverse (252043423024), we get a palindrome (672367763276).

The spelling of 420324340252 in words is "four hundred twenty billion, three hundred twenty-four million, three hundred forty thousand, two hundred fifty-two".