20548416 has 56 divisors (see below), whose sum is σ = 62138560. Its totient is φ = 5870592.

The previous prime is 20548379. The next prime is 20548417. The reversal of 20548416 is 61484502.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20548417) 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, 6301 + ... + 8988.

Almost surely, 2^20548416 is an apocalyptic number.

It is an amenable number.

20548416 is an abundant number, since it is smaller than the sum of its proper divisors (41590144).

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

20548416 is a wasteful number, since it uses less digits than its factorization.

20548416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15311 (or 15301 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 20548416 is about 4533.0360686851. The cubic root of 20548416 is about 273.9004735586.

The spelling of 20548416 in words is "twenty million, five hundred forty-eight thousand, four hundred sixteen".