20108626 has 4 divisors (see below), whose sum is σ = 30162942. Its totient is φ = 10054312.

The previous prime is 20108623. The next prime is 20108651. The reversal of 20108626 is 62680102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62680102 = 2 ⋅31340051.

It can be written as a sum of positive squares in only one way, i.e., 16008001 + 4100625 = 4001^2 + 2025^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20108626.

It is not an unprimeable number, because it can be changed into a prime (20108623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5027155 + ... + 5027158.

Almost surely, 2^20108626 is an apocalyptic number.

20108626 is a deficient number, since it is larger than the sum of its proper divisors (10054316).

20108626 is a wasteful number, since it uses less digits than its factorization.

20108626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10054315.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 20108626 is about 4484.2642651833. The cubic root of 20108626 is about 271.9323018515.

Adding to 20108626 its reverse (62680102), we get a palindrome (82788728).

The spelling of 20108626 in words is "twenty million, one hundred eight thousand, six hundred twenty-six".