421430108 has 24 divisors (see below), whose sum is σ = 846894720. Its totient is φ = 181476720.

The previous prime is 421430077. The next prime is 421430131. The reversal of 421430108 is 801034124.

It is a congruent 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, 251216 + ... + 252887.

It is an arithmetic number, because the mean of its divisors is an integer number (35287280).

Almost surely, 2^421430108 is an apocalyptic number.

It is an amenable number.

421430108 is an abundant number, since it is smaller than the sum of its proper divisors (425464612).

421430108 is a wasteful number, since it uses less digits than its factorization.

421430108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504137 (or 504135 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 421430108 is about 20528.7629437334. The cubic root of 421430108 is about 749.7362675674.

The spelling of 421430108 in words is "four hundred twenty-one million, four hundred thirty thousand, one hundred eight".