420300556 has 24 divisors (see below), whose sum is σ = 793341360. Its totient is φ = 193682112.

The previous prime is 420300527. The next prime is 420300583. The reversal of 420300556 is 655003024.

It is a self number, because there is not a number n which added to its sum of digits gives 420300556.

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, 29235 + ... + 41173.

It is an arithmetic number, because the mean of its divisors is an integer number (33055890).

Almost surely, 2^420300556 is an apocalyptic number.

It is an amenable number.

420300556 is a deficient number, since it is larger than the sum of its proper divisors (373040804).

420300556 is a wasteful number, since it uses less digits than its factorization.

420300556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12633 (or 12631 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 420300556 is about 20501.2330360883. The cubic root of 420300556 is about 749.0658330741.

The spelling of 420300556 in words is "four hundred twenty million, three hundred thousand, five hundred fifty-six".