20886075 has 72 divisors (see below), whose sum is σ = 43524000. Its totient is φ = 9377280.

The previous prime is 20886049. The next prime is 20886083. The reversal of 20886075 is 57068802.

It is not a de Polignac number, because 20886075 - 2⁶ = 20886011 is a prime.

It is a super-3 number, since 3×20886075³ (a number of 23 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 140101 + ... + 140249.

It is an arithmetic number, because the mean of its divisors is an integer number (604500).

Almost surely, 2^20886075 is an apocalyptic number.

20886075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20886075 is an abundant number, since it is smaller than the sum of its proper divisors (22637925).

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

20886075 is a wasteful number, since it uses less digits than its factorization.

20886075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261 (or 253 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 20886075 is about 4570.1285539906. The cubic root of 20886075 is about 275.3926072666.

The spelling of 20886075 in words is "twenty million, eight hundred eighty-six thousand, seventy-five".