20335268 has 12 divisors (see below), whose sum is σ = 35814492. Its totient is φ = 10102560.

The previous prime is 20335253. The next prime is 20335277. The reversal of 20335268 is 86253302.

It can be written as a sum of positive squares in 2 ways, for example, as 9193024 + 11142244 = 3032^2 + 3338^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20335268.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15563 + ... + 16818.

It is an arithmetic number, because the mean of its divisors is an integer number (2984541).

Almost surely, 2^20335268 is an apocalyptic number.

It is an amenable number.

20335268 is a deficient number, since it is larger than the sum of its proper divisors (15479224).

20335268 is a wasteful number, since it uses less digits than its factorization.

20335268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32542 (or 32540 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 20335268 is about 4509.4642697332. The cubic root of 20335268 is about 272.9501266307.

The spelling of 20335268 in words is "twenty million, three hundred thirty-five thousand, two hundred sixty-eight".