20108466 has 32 divisors (see below), whose sum is σ = 51070080. Its totient is φ = 5745168.

The previous prime is 20108461. The next prime is 20108483. The reversal of 20108466 is 66480102.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (20108461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26221 + ... + 26976.

It is an arithmetic number, because the mean of its divisors is an integer number (1595940).

Almost surely, 2^20108466 is an apocalyptic number.

20108466 is an abundant number, since it is smaller than the sum of its proper divisors (30961614).

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

20108466 is a wasteful number, since it uses less digits than its factorization.

20108466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53215 (or 53209 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 20108466 is about 4484.2464249860. The cubic root of 20108466 is about 271.9315806141.

Adding to 20108466 its reverse (66480102), we get a palindrome (86588568).

The spelling of 20108466 in words is "twenty million, one hundred eight thousand, four hundred sixty-six".