20882385 has 24 divisors (see below), whose sum is σ = 36638784. Its totient is φ = 11001120.

The previous prime is 20882383. The next prime is 20882399. The reversal of 20882385 is 58328802.

It is not a de Polignac number, because 20882385 - 2¹ = 20882383 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20882383) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 940 + ... + 6530.

It is an arithmetic number, because the mean of its divisors is an integer number (1526616).

Almost surely, 2^20882385 is an apocalyptic number.

It is an amenable number.

20882385 is a deficient number, since it is larger than the sum of its proper divisors (15756399).

20882385 is a wasteful number, since it uses less digits than its factorization.

20882385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5685 (or 5682 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 20882385 is about 4569.7248276018. The cubic root of 20882385 is about 275.3763881896.

The spelling of 20882385 in words is "twenty million, eight hundred eighty-two thousand, three hundred eighty-five".