421608448 has 22 divisors (see below), whose sum is σ = 842807216. Its totient is φ = 210803712.

The previous prime is 421608433. The next prime is 421608479. The reversal of 421608448 is 844806124.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204840 + ... + 206887.

Almost surely, 2^421608448 is an apocalyptic number.

It is an amenable number.

421608448 is a deficient number, since it is larger than the sum of its proper divisors (421198768).

421608448 is an equidigital number, since it uses as much as digits as its factorization.

421608448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411747 (or 411729 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 37.

The square root of 421608448 is about 20533.1061459293. The cubic root of 421608448 is about 749.8420099805.

The spelling of 421608448 in words is "four hundred twenty-one million, six hundred eight thousand, four hundred forty-eight".