421936 has 10 divisors (see below), whose sum is σ = 817532. Its totient is φ = 210960.

The previous prime is 421913. The next prime is 421943. The reversal of 421936 is 639124.

421936 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 421936.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13170 + ... + 13201.

2⁴²¹⁹³⁶ is an apocalyptic number.

It is an amenable number.

421936 is a deficient number, since it is larger than the sum of its proper divisors (395596).

421936 is a wasteful number, since it uses less digits than its factorization.

421936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26379 (or 26373 counting only the distinct ones).

The product of its digits is 1296, while the sum is 25.

The square root of 421936 is about 649.5660089629. The cubic root of 421936 is about 75.0036146406.

The spelling of 421936 in words is "four hundred twenty-one thousand, nine hundred thirty-six".