20302648 has 16 divisors (see below), whose sum is σ = 38145960. Its totient is φ = 10130400.

The previous prime is 20302643. The next prime is 20302649. The reversal of 20302648 is 84620302.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20302643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1983 + ... + 6673.

Almost surely, 2^20302648 is an apocalyptic number.

It is an amenable number.

20302648 is a deficient number, since it is larger than the sum of its proper divisors (17843312).

20302648 is a wasteful number, since it uses less digits than its factorization.

20302648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5238 (or 5234 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 20302648 is about 4505.8459805013. The cubic root of 20302648 is about 272.8041012103.

The spelling of 20302648 in words is "twenty million, three hundred two thousand, six hundred forty-eight".