420196836 has 24 divisors (see below), whose sum is σ = 980951104. Its totient is φ = 139995360.

The previous prime is 420196801. The next prime is 420196849. The reversal of 420196836 is 638691024.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 420196794 and 420196803.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19881 + ... + 35151.

Almost surely, 2^420196836 is an apocalyptic number.

It is an amenable number.

420196836 is an abundant number, since it is smaller than the sum of its proper divisors (560754268).

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

420196836 is a wasteful number, since it uses less digits than its factorization.

420196836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17571 (or 17569 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 420196836 is about 20498.7032760611. The cubic root of 420196836 is about 749.0042109017.

The spelling of 420196836 in words is "four hundred twenty million, one hundred ninety-six thousand, eight hundred thirty-six".