20536268 has 6 divisors (see below), whose sum is σ = 35938476. Its totient is φ = 10268132.

The previous prime is 20536231. The next prime is 20536279. The reversal of 20536268 is 86263502.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2567030 + ... + 2567037.

It is an arithmetic number, because the mean of its divisors is an integer number (5989746).

Almost surely, 2^20536268 is an apocalyptic number.

It is an amenable number.

20536268 is a deficient number, since it is larger than the sum of its proper divisors (15402208).

20536268 is a wasteful number, since it uses less digits than its factorization.

20536268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5134071 (or 5134069 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 20536268 is about 4531.6959297817. The cubic root of 20536268 is about 273.8464872584.

The spelling of 20536268 in words is "twenty million, five hundred thirty-six thousand, two hundred sixty-eight".