421603108 has 12 divisors (see below), whose sum is σ = 737992332. Its totient is φ = 210748160.

The previous prime is 421603097. The next prime is 421603121. The reversal of 421603108 is 801306124.

It can be written as a sum of positive squares in 2 ways, for example, as 16064064 + 405539044 = 4008^2 + 20138^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8328 + ... + 30208.

It is an arithmetic number, because the mean of its divisors is an integer number (61499361).

Almost surely, 2^421603108 is an apocalyptic number.

It is an amenable number.

421603108 is a deficient number, since it is larger than the sum of its proper divisors (316389224).

421603108 is a wasteful number, since it uses less digits than its factorization.

421603108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26702 (or 26700 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 421603108 is about 20532.9761116113. The cubic root of 421603108 is about 749.8388441890.

The spelling of 421603108 in words is "four hundred twenty-one million, six hundred three thousand, one hundred eight".