642714570 has 48 divisors (see below), whose sum is σ = 1702599912. Its totient is φ = 168155520.

The previous prime is 642714503. The next prime is 642714571. The reversal of 642714570 is 75417246.

642714570 is a `hidden beast` number, since 64 + 27 + 1 + 4 + 570 = 666.

642714570 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 362788209 + 279926361 = 19047^2 + 16731^2 .

It is not an unprimeable number, because it can be changed into a prime (642714571) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62601 + ... + 72140.

Almost surely, 2^642714570 is an apocalyptic number.

642714570 is an abundant number, since it is smaller than the sum of its proper divisors (1059885342).

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

642714570 is a wasteful number, since it uses less digits than its factorization.

642714570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134807 (or 134804 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 642714570 is about 25351.8159112912. The cubic root of 642714570 is about 862.9905665469.

The spelling of 642714570 in words is "six hundred forty-two million, seven hundred fourteen thousand, five hundred seventy".