421028336 has 20 divisors (see below), whose sum is σ = 816516192. Its totient is φ = 210314496.

The previous prime is 421028299. The next prime is 421028357. The reversal of 421028336 is 633820124.

It is a junction number, because it is equal to n+sod(n) for n = 421028299 and 421028308.

It is a congruent number.

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, 5720 + ... + 29576.

Almost surely, 2^421028336 is an apocalyptic number.

It is an amenable number.

421028336 is a deficient number, since it is larger than the sum of its proper divisors (395487856).

421028336 is a wasteful number, since it uses less digits than its factorization.

421028336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24968 (or 24962 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 421028336 is about 20518.9750231341. The cubic root of 421028336 is about 749.4979371707.

The spelling of 421028336 in words is "four hundred twenty-one million, twenty-eight thousand, three hundred thirty-six".