421986204 has 18 divisors (see below), whose sum is σ = 1066687440. Its totient is φ = 140662056.

The previous prime is 421986179. The next prime is 421986241. The reversal of 421986204 is 402689124.

421986204 is a `hidden beast` number, since 4 + 21 + 9 + 8 + 620 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 11721839 = 421986204 / (4 + 2 + 1 + 9 + 8 + 6 + 2 + 0 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5860884 + ... + 5860955.

Almost surely, 2^421986204 is an apocalyptic number.

It is an amenable number.

421986204 is an abundant number, since it is smaller than the sum of its proper divisors (644701236).

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

421986204 is a wasteful number, since it uses less digits than its factorization.

421986204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11721849 (or 11721844 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 421986204 is about 20542.3027920435. The cubic root of 421986204 is about 750.0658928773.

The spelling of 421986204 in words is "four hundred twenty-one million, nine hundred eighty-six thousand, two hundred four".