20268826 has 4 divisors (see below), whose sum is σ = 30403242. Its totient is φ = 10134412.

The previous prime is 20268817. The next prime is 20268827. The reversal of 20268826 is 62886202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 15642025 + 4626801 = 3955^2 + 2151^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20268791 and 20268800.

It is not an unprimeable number, because it can be changed into a prime (20268827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5067205 + ... + 5067208.

Almost surely, 2^20268826 is an apocalyptic number.

20268826 is a deficient number, since it is larger than the sum of its proper divisors (10134416).

20268826 is a wasteful number, since it uses less digits than its factorization.

20268826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10134415.

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 20268826 is about 4502.0912918332. The cubic root of 20268826 is about 272.6525297065.

The spelling of 20268826 in words is "twenty million, two hundred sixty-eight thousand, eight hundred twenty-six".