421646848 has 80 divisors (see below), whose sum is σ = 976973184. Its totient is φ = 178053120.

The previous prime is 421646843. The next prime is 421646861. The reversal of 421646848 is 848646124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421646843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253636 + ... + 255292.

Almost surely, 2^421646848 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421646848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (488486592).

421646848 is an abundant number, since it is smaller than the sum of its proper divisors (555326336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

421646848 is an equidigital number, since it uses as much as digits as its factorization.

421646848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1753 (or 1737 counting only the distinct ones).

The product of its digits is 294912, while the sum is 43.

The square root of 421646848 is about 20534.0411999197. The cubic root of 421646848 is about 749.8647744350.

The spelling of 421646848 in words is "four hundred twenty-one million, six hundred forty-six thousand, eight hundred forty-eight".