20303648 has 24 divisors (see below), whose sum is σ = 40346460. Its totient is φ = 10056960.

The previous prime is 20303629. The next prime is 20303663. The reversal of 20303648 is 84630302.

It can be written as a sum of positive squares in 2 ways, for example, as 18421264 + 1882384 = 4292^2 + 1372^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 578 + ... + 6398.

Almost surely, 2^20303648 is an apocalyptic number.

It is an amenable number.

20303648 is a deficient number, since it is larger than the sum of its proper divisors (20042812).

20303648 is a wasteful number, since it uses less digits than its factorization.

20303648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5940 (or 5932 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 20303648 is about 4505.9569460881. The cubic root of 20303648 is about 272.8085800944.

The spelling of 20303648 in words is "twenty million, three hundred three thousand, six hundred forty-eight".