421335404330 has 16 divisors (see below), whose sum is σ = 772713233064. Its totient is φ = 165354271680.

The previous prime is 421335404297. The next prime is 421335404353. The reversal of 421335404330 is 33404533124.

It can be written as a sum of positive squares in 4 ways, for example, as 265279592809 + 156055811521 = 515053^2 + 395039^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 397485701 + ... + 397486760.

Almost surely, 2^421335404330 is an apocalyptic number.

421335404330 is a deficient number, since it is larger than the sum of its proper divisors (351377828734).

421335404330 is a wasteful number, since it uses less digits than its factorization.

421335404330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 794972521.

The product of its (nonzero) digits is 51840, while the sum is 32.

Adding to 421335404330 its reverse (33404533124), we get a palindrome (454739937454).

The spelling of 421335404330 in words is "four hundred twenty-one billion, three hundred thirty-five million, four hundred four thousand, three hundred thirty".