420707564 has 12 divisors (see below), whose sum is σ = 740756184. Its totient is φ = 209062944.

The previous prime is 420707561. The next prime is 420707597. The reversal of 420707564 is 465707024.

It is not an unprimeable number, because it can be changed into a prime (420707561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 321977 + ... + 323280.

It is an arithmetic number, because the mean of its divisors is an integer number (61729682).

Almost surely, 2^420707564 is an apocalyptic number.

It is an amenable number.

420707564 is a deficient number, since it is larger than the sum of its proper divisors (320048620).

420707564 is a wasteful number, since it uses less digits than its factorization.

420707564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645424 (or 645422 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 35.

The square root of 420707564 is about 20511.1570614629. The cubic root of 420707564 is about 749.3075469492.

The spelling of 420707564 in words is "four hundred twenty million, seven hundred seven thousand, five hundred sixty-four".