20268208 has 10 divisors (see below), whose sum is σ = 39269684. Its totient is φ = 10134096.

The previous prime is 20268197. The next prime is 20268239. The reversal of 20268208 is 80286202.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 633366 + ... + 633397.

Almost surely, 2^20268208 is an apocalyptic number.

It is an amenable number.

20268208 is a deficient number, since it is larger than the sum of its proper divisors (19001476).

20268208 is a wasteful number, since it uses less digits than its factorization.

20268208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1266771 (or 1266765 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 20268208 is about 4502.0226565401. The cubic root of 20268208 is about 272.6497586041.

The spelling of 20268208 in words is "twenty million, two hundred sixty-eight thousand, two hundred eight".