420065912 has 32 divisors (see below), whose sum is σ = 901415520. Its totient is φ = 179773440.

The previous prime is 420065909. The next prime is 420065917. The reversal of 420065912 is 219560024.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420065917) by changing a digit.

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, 37688 + ... + 47544.

It is an arithmetic number, because the mean of its divisors is an integer number (28169235).

Almost surely, 2^420065912 is an apocalyptic number.

It is an amenable number.

420065912 is an abundant number, since it is smaller than the sum of its proper divisors (481349608).

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

420065912 is a wasteful number, since it uses less digits than its factorization.

420065912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10631 (or 10627 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 420065912 is about 20495.5095569737. The cubic root of 420065912 is about 748.9264117963.

The spelling of 420065912 in words is "four hundred twenty million, sixty-five thousand, nine hundred twelve".