420712570 has 32 divisors (see below), whose sum is σ = 804589200. Its totient is φ = 158086656.

The previous prime is 420712561. The next prime is 420712601. The reversal of 420712570 is 75217024.

It can be written as a sum of positive squares in 8 ways, for example, as 377796969 + 42915601 = 19437^2 + 6551^2 .

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 15 ways as a sum of consecutive naturals, for example, 8875 + ... + 30334.

Almost surely, 2^420712570 is an apocalyptic number.

420712570 is a deficient number, since it is larger than the sum of its proper divisors (383876630).

420712570 is a wasteful number, since it uses less digits than its factorization.

420712570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39282.

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 420712570 is about 20511.2790922458. The cubic root of 420712570 is about 749.3105189413.

Adding to 420712570 its reverse (75217024), we get a palindrome (495929594).

The spelling of 420712570 in words is "four hundred twenty million, seven hundred twelve thousand, five hundred seventy".