421070508 has 48 divisors (see below), whose sum is σ = 1121179360. Its totient is φ = 136562112.

The previous prime is 421070443. The next prime is 421070513. The reversal of 421070508 is 805070124.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48691 + ... + 56682.

Almost surely, 2^421070508 is an apocalyptic number.

It is an amenable number.

421070508 is an abundant number, since it is smaller than the sum of its proper divisors (700108852).

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

421070508 is a wasteful number, since it uses less digits than its factorization.

421070508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105423 (or 105415 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 421070508 is about 20520.0026315788. The cubic root of 421070508 is about 749.5229606423.

The spelling of 421070508 in words is "four hundred twenty-one million, seventy thousand, five hundred eight".