20422626 has 32 divisors (see below), whose sum is σ = 47326848. Its totient is φ = 5754240.

The previous prime is 20422613. The next prime is 20422637. The reversal of 20422626 is 62622402.

It is a junction number, because it is equal to n+sod(n) for n = 20422596 and 20422605.

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, 265 + ... + 6396.

It is an arithmetic number, because the mean of its divisors is an integer number (1478964).

Almost surely, 2^20422626 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20422626, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23663424).

20422626 is an abundant number, since it is smaller than the sum of its proper divisors (26904222).

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

20422626 is a wasteful number, since it uses less digits than its factorization.

20422626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6746.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 20422626 is about 4519.1399624265. The cubic root of 20422626 is about 273.3404225143.

The spelling of 20422626 in words is "twenty million, four hundred twenty-two thousand, six hundred twenty-six".