421331336 has 16 divisors (see below), whose sum is σ = 791992140. Its totient is φ = 210133440.

The previous prime is 421331333. The next prime is 421331347. The reversal of 421331336 is 633133124.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 411684100 + 9647236 = 20290^2 + 3106^2 .

It is not an unprimeable number, because it can be changed into a prime (421331333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63155 + ... + 69506.

Almost surely, 2^421331336 is an apocalyptic number.

It is an amenable number.

421331336 is a deficient number, since it is larger than the sum of its proper divisors (370660804).

421331336 is a wasteful number, since it uses less digits than its factorization.

421331336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133064 (or 133060 counting only the distinct ones).

The product of its digits is 3888, while the sum is 26.

The square root of 421331336 is about 20526.3571049517. The cubic root of 421331336 is about 749.6776902491.

The spelling of 421331336 in words is "four hundred twenty-one million, three hundred thirty-one thousand, three hundred thirty-six".