421204322404 has 12 divisors (see below), whose sum is σ = 745389672300. Its totient is φ = 208235844608.

The previous prime is 421204322347. The next prime is 421204322447. The reversal of 421204322404 is 404223402124.

It can be written as a sum of positive squares in 2 ways, for example, as 112459622500 + 308744699904 = 335350^2 + 555648^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 591578749 + ... + 591579460.

It is an arithmetic number, because the mean of its divisors is an integer number (62115806025).

Almost surely, 2^421204322404 is an apocalyptic number.

It is an amenable number.

421204322404 is a deficient number, since it is larger than the sum of its proper divisors (324185349896).

421204322404 is a wasteful number, since it uses less digits than its factorization.

421204322404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1183158302 (or 1183158300 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 421204322404 its reverse (404223402124), we get a palindrome (825427724528).

The spelling of 421204322404 in words is "four hundred twenty-one billion, two hundred four million, three hundred twenty-two thousand, four hundred four".