421843832 has 8 divisors (see below), whose sum is σ = 790957200. Its totient is φ = 210921912.

The previous prime is 421843787. The next prime is 421843841. The reversal of 421843832 is 238348124.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 421843792 and 421843801.

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, 26365232 + ... + 26365247.

It is an arithmetic number, because the mean of its divisors is an integer number (98869650).

Almost surely, 2^421843832 is an apocalyptic number.

It is an amenable number.

421843832 is a deficient number, since it is larger than the sum of its proper divisors (369113368).

421843832 is a wasteful number, since it uses less digits than its factorization.

421843832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52730485 (or 52730481 counting only the distinct ones).

The product of its digits is 36864, while the sum is 35.

The square root of 421843832 is about 20538.8371627997. The cubic root of 421843832 is about 749.9815296192.

The spelling of 421843832 in words is "four hundred twenty-one million, eight hundred forty-three thousand, eight hundred thirty-two".