20608648 has 8 divisors (see below), whose sum is σ = 38641230. Its totient is φ = 10304320.

The previous prime is 20608613. The next prime is 20608657. The reversal of 20608648 is 84680602.

It can be written as a sum of positive squares in only one way, i.e., 17288964 + 3319684 = 4158^2 + 1822^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1288033 + ... + 1288048.

Almost surely, 2^20608648 is an apocalyptic number.

It is an amenable number.

20608648 is a deficient number, since it is larger than the sum of its proper divisors (18032582).

20608648 is a wasteful number, since it uses less digits than its factorization.

20608648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2576087 (or 2576083 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 20608648 is about 4539.6748782264. The cubic root of 20608648 is about 274.1678336666.

The spelling of 20608648 in words is "twenty million, six hundred eight thousand, six hundred forty-eight".