420173108 has 24 divisors (see below), whose sum is σ = 777795648. Its totient is φ = 198196416.

The previous prime is 420173107. The next prime is 420173111. The reversal of 420173108 is 801371024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420173107) 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, 24566 + ... + 37997.

It is an arithmetic number, because the mean of its divisors is an integer number (32408152).

Almost surely, 2^420173108 is an apocalyptic number.

It is an amenable number.

420173108 is a deficient number, since it is larger than the sum of its proper divisors (357622540).

420173108 is a wasteful number, since it uses less digits than its factorization.

420173108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62663 (or 62661 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 420173108 is about 20498.1244995731. The cubic root of 420173108 is about 748.9901121866.

The spelling of 420173108 in words is "four hundred twenty million, one hundred seventy-three thousand, one hundred eight".