20426626 has 16 divisors (see below), whose sum is σ = 33994080. Its totient is φ = 9126880.

The previous prime is 20426611. The next prime is 20426633. The reversal of 20426626 is 62662402.

It is a junction number, because it is equal to n+sod(n) for n = 20426594 and 20426603.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6571 + ... + 9166.

It is an arithmetic number, because the mean of its divisors is an integer number (2124630).

Almost surely, 2^20426626 is an apocalyptic number.

20426626 is a deficient number, since it is larger than the sum of its proper divisors (13567454).

20426626 is a wasteful number, since it uses less digits than its factorization.

20426626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15809.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 20426626 is about 4519.5825028425. The cubic root of 20426626 is about 273.3582669435.

It can be divided in two parts, 2042 and 6626, that added together give a palindrome (8668).

The spelling of 20426626 in words is "twenty million, four hundred twenty-six thousand, six hundred twenty-six".