420705602 has 16 divisors (see below), whose sum is σ = 638193600. Its totient is φ = 207980400.

The previous prime is 420705589. The next prime is 420705611. The reversal of 420705602 is 206507024.

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, 265649 + ... + 267227.

It is an arithmetic number, because the mean of its divisors is an integer number (39887100).

Almost surely, 2^420705602 is an apocalyptic number.

420705602 is a deficient number, since it is larger than the sum of its proper divisors (217487998).

420705602 is a wasteful number, since it uses less digits than its factorization.

420705602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3001.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 420705602 is about 20511.1092337787. The cubic root of 420705602 is about 749.3063821308.

The spelling of 420705602 in words is "four hundred twenty million, seven hundred five thousand, six hundred two".