20548408 has 16 divisors (see below), whose sum is σ = 38591280. Its totient is φ = 10257408.

The previous prime is 20548379. The next prime is 20548417. The reversal of 20548408 is 80484502.

It is a self number, because there is not a number n which added to its sum of digits gives 20548408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4216 + ... + 7672.

It is an arithmetic number, because the mean of its divisors is an integer number (2411955).

Almost surely, 2^20548408 is an apocalyptic number.

It is an amenable number.

20548408 is a deficient number, since it is larger than the sum of its proper divisors (18042872).

20548408 is a wasteful number, since it uses less digits than its factorization.

20548408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4206 (or 4202 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 31.

The square root of 20548408 is about 4533.0351862742. The cubic root of 20548408 is about 273.9004380132.

The spelling of 20548408 in words is "twenty million, five hundred forty-eight thousand, four hundred eight".