20607648 has 24 divisors (see below), whose sum is σ = 54095328. Its totient is φ = 6869184.

The previous prime is 20607641. The next prime is 20607673. The reversal of 20607648 is 84670602.

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (20607641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107236 + ... + 107427.

It is an arithmetic number, because the mean of its divisors is an integer number (2253972).

Almost surely, 2^20607648 is an apocalyptic number.

It is an amenable number.

20607648 is an abundant number, since it is smaller than the sum of its proper divisors (33487680).

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

20607648 is a wasteful number, since it uses less digits than its factorization.

20607648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214676 (or 214668 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 20607648 is about 4539.5647368443. The cubic root of 20607648 is about 274.1633990838.

The spelling of 20607648 in words is "twenty million, six hundred seven thousand, six hundred forty-eight".