20019626 has 16 divisors (see below), whose sum is σ = 32961600. Its totient is φ = 9043680.

The previous prime is 20019619. The next prime is 20019631. The reversal of 20019626 is 62691002.

It is a junction number, because it is equal to n+sod(n) for n = 20019595 and 20019604.

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, 950 + ... + 6398.

It is an arithmetic number, because the mean of its divisors is an integer number (2060100).

Almost surely, 2^20019626 is an apocalyptic number.

20019626 is a deficient number, since it is larger than the sum of its proper divisors (12941974).

20019626 is a wasteful number, since it uses less digits than its factorization.

20019626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5629.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 20019626 is about 4474.3296704646. The cubic root of 20019626 is about 271.5305212328.

The spelling of 20019626 in words is "twenty million, nineteen thousand, six hundred twenty-six".