20054688 has 48 divisors (see below), whose sum is σ = 52889760. Its totient is φ = 6653696.

The previous prime is 20054687. The next prime is 20054693. The reversal of 20054688 is 88645002.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (20054681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30103 + ... + 30761.

It is an arithmetic number, because the mean of its divisors is an integer number (1101870).

Almost surely, 2^20054688 is an apocalyptic number.

It is an amenable number.

20054688 is an abundant number, since it is smaller than the sum of its proper divisors (32835072).

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

20054688 is a wasteful number, since it uses less digits than its factorization.

20054688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 989 (or 981 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 20054688 is about 4478.2460852436. The cubic root of 20054688 is about 271.6889466131.

The spelling of 20054688 in words is "twenty million, fifty-four thousand, six hundred eighty-eight".