421336168 has 32 divisors (see below), whose sum is σ = 885123360. Its totient is φ = 186338880.

The previous prime is 421336141. The next prime is 421336171. The reversal of 421336168 is 861633124.

It is a happy number.

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, 61446 + ... + 67957.

It is an arithmetic number, because the mean of its divisors is an integer number (27660105).

Almost surely, 2^421336168 is an apocalyptic number.

It is an amenable number.

421336168 is an abundant number, since it is smaller than the sum of its proper divisors (463787192).

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

421336168 is a wasteful number, since it uses less digits than its factorization.

421336168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129457 (or 129453 counting only the distinct ones).

The product of its digits is 20736, while the sum is 34.

The square root of 421336168 is about 20526.4748069414. The cubic root of 421336168 is about 749.6805561083.

The spelling of 421336168 in words is "four hundred twenty-one million, three hundred thirty-six thousand, one hundred sixty-eight".