20206626 has 32 divisors (see below), whose sum is σ = 44326656. Its totient is φ = 6090000.

The previous prime is 20206609. The next prime is 20206631. The reversal of 20206626 is 62660202.

It is a junction number, because it is equal to n+sod(n) for n = 20206596 and 20206605.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13201 + ... + 14651.

It is an arithmetic number, because the mean of its divisors is an integer number (1385208).

Almost surely, 2^20206626 is an apocalyptic number.

20206626 is an abundant number, since it is smaller than the sum of its proper divisors (24120030).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20206626 is a wasteful number, since it uses less digits than its factorization.

20206626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1678.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 20206626 is about 4495.1780832354. The cubic root of 20206626 is about 272.3733429293.

Adding to 20206626 its reverse (62660202), we get a palindrome (82866828).

It can be divided in two parts, 2020 and 6626, that added together give a triangular number (8646 = T₁₃₁).

The spelling of 20206626 in words is "twenty million, two hundred six thousand, six hundred twenty-six".