20826266 has 16 divisors (see below), whose sum is σ = 31733856. Its totient is φ = 10249776.

The previous prime is 20826257. The next prime is 20826271. The reversal of 20826266 is 66262802.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 65540 + ... + 65856.

It is an arithmetic number, because the mean of its divisors is an integer number (1983366).

Almost surely, 2^20826266 is an apocalyptic number.

20826266 is a deficient number, since it is larger than the sum of its proper divisors (10907590).

20826266 is a wasteful number, since it uses less digits than its factorization.

20826266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 20826266 is about 4563.5803926303. The cubic root of 20826266 is about 275.1294861282.

The spelling of 20826266 in words is "twenty million, eight hundred twenty-six thousand, two hundred sixty-six".