20603108 has 24 divisors (see below), whose sum is σ = 38102400. Its totient is φ = 9732128.

The previous prime is 20603059. The next prime is 20603111. The reversal of 20603108 is 80130602.

It is a self number, because there is not a number n which added to its sum of digits gives 20603108.

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 7 ways as a sum of consecutive naturals, for example, 3563 + ... + 7341.

It is an arithmetic number, because the mean of its divisors is an integer number (1587600).

Almost surely, 2^20603108 is an apocalyptic number.

It is an amenable number.

20603108 is a deficient number, since it is larger than the sum of its proper divisors (17499292).

20603108 is a wasteful number, since it uses less digits than its factorization.

20603108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3859 (or 3857 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 20603108 is about 4539.0646613592. The cubic root of 20603108 is about 274.1432642735.

The spelling of 20603108 in words is "twenty million, six hundred three thousand, one hundred eight".