421002340204 has 24 divisors (see below), whose sum is σ = 763513274160. Its totient is φ = 202881478464.

The previous prime is 421002340189. The next prime is 421002340207. The reversal of 421002340204 is 402043200124.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (421002340207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3157899 + ... + 3288514.

It is an arithmetic number, because the mean of its divisors is an integer number (31813053090).

Almost surely, 2^421002340204 is an apocalyptic number.

It is an amenable number.

421002340204 is a deficient number, since it is larger than the sum of its proper divisors (342510933956).

421002340204 is a wasteful number, since it uses less digits than its factorization.

421002340204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6447009 (or 6447007 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 421002340204 its reverse (402043200124), we get a palindrome (823045540328).

The spelling of 421002340204 in words is "four hundred twenty-one billion, two million, three hundred forty thousand, two hundred four".