20603626 has 16 divisors (see below), whose sum is σ = 33281280. Its totient is φ = 9530560.

The previous prime is 20603621. The next prime is 20603633. The reversal of 20603626 is 62630602.

It is a self number, because there is not a number n which added to its sum of digits gives 20603626.

It is not an unprimeable number, because it can be changed into a prime (20603621) 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, 3130 + ... + 7141.

It is an arithmetic number, because the mean of its divisors is an integer number (2080080).

Almost surely, 2^20603626 is an apocalyptic number.

20603626 is a deficient number, since it is larger than the sum of its proper divisors (12677654).

20603626 is a wasteful number, since it uses less digits than its factorization.

20603626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10349.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 20603626 is about 4539.1217212144. The cubic root of 20603626 is about 274.1455617428.

The spelling of 20603626 in words is "twenty million, six hundred three thousand, six hundred twenty-six".