20775108 has 24 divisors (see below), whose sum is σ = 48560512. Its totient is φ = 6912864.

The previous prime is 20775103. The next prime is 20775121. The reversal of 20775108 is 80157702.

It is a happy number.

It is a super-2 number, since 2×20775108² = 863210224823328, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20775103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7941 + ... + 10227.

Almost surely, 2^20775108 is an apocalyptic number.

It is an amenable number.

20775108 is an abundant number, since it is smaller than the sum of its proper divisors (27785404).

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

20775108 is a wasteful number, since it uses less digits than its factorization.

20775108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3051 (or 3049 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 30.

The square root of 20775108 is about 4557.9719174212. The cubic root of 20775108 is about 274.9040238081.

The spelling of 20775108 in words is "twenty million, seven hundred seventy-five thousand, one hundred eight".