420484056 has 16 divisors (see below), whose sum is σ = 1051210200. Its totient is φ = 140161344.

The previous prime is 420484037. The next prime is 420484087. The reversal of 420484056 is 650484024.

It is a super-3 number, since 3×420484056³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8760061 + ... + 8760108.

Almost surely, 2^420484056 is an apocalyptic number.

It is an amenable number.

420484056 is an abundant number, since it is smaller than the sum of its proper divisors (630726144).

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

420484056 is a wasteful number, since it uses less digits than its factorization.

420484056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17520178 (or 17520174 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 33.

The square root of 420484056 is about 20505.7078882930. The cubic root of 420484056 is about 749.1748293464.

The spelling of 420484056 in words is "four hundred twenty million, four hundred eighty-four thousand, fifty-six".