20648602 has 16 divisors (see below), whose sum is σ = 33435360. Its totient is φ = 9507312.

The previous prime is 20648599. The next prime is 20648647. The reversal of 20648602 is 20684602.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15453 + ... + 16735.

It is an arithmetic number, because the mean of its divisors is an integer number (2089710).

Almost surely, 2^20648602 is an apocalyptic number.

20648602 is a deficient number, since it is larger than the sum of its proper divisors (12786758).

20648602 is a wasteful number, since it uses less digits than its factorization.

20648602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1917.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 20648602 is about 4544.0732828598. The cubic root of 20648602 is about 274.3448957481.

The spelling of 20648602 in words is "twenty million, six hundred forty-eight thousand, six hundred two".