421908696 has 256 divisors, whose sum is σ = 1349913600. Its totient is φ = 120960000.

The previous prime is 421908679. The next prime is 421908701. The reversal of 421908696 is 696809124.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5942341 + ... + 5942411.

It is an arithmetic number, because the mean of its divisors is an integer number (5273100).

Almost surely, 2^421908696 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 421908696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (674956800).

421908696 is an abundant number, since it is smaller than the sum of its proper divisors (928004904).

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

421908696 is a wasteful number, since it uses less digits than its factorization.

421908696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199 (or 189 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 421908696 is about 20540.4161593674. The cubic root of 421908696 is about 750.0199674684.

The spelling of 421908696 in words is "four hundred twenty-one million, nine hundred eight thousand, six hundred ninety-six".