420765512 has 32 divisors (see below), whose sum is σ = 801360000. Its totient is φ = 207088704.

The previous prime is 420765491. The next prime is 420765539. The reversal of 420765512 is 215567024.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209489 + ... + 211487.

It is an arithmetic number, because the mean of its divisors is an integer number (25042500).

Almost surely, 2^420765512 is an apocalyptic number.

It is an amenable number.

420765512 is a deficient number, since it is larger than the sum of its proper divisors (380594488).

420765512 is a wasteful number, since it uses less digits than its factorization.

420765512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2405 (or 2401 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 420765512 is about 20512.5696098758. The cubic root of 420765512 is about 749.3419484227.

The spelling of 420765512 in words is "four hundred twenty million, seven hundred sixty-five thousand, five hundred twelve".