10266309 has 12 divisors (see below), whose sum is σ = 14870700. Its totient is φ = 6825024.

The previous prime is 10266307. The next prime is 10266313. The reversal of 10266309 is 90366201.

It is a happy number.

10266309 is a `hidden beast` number, since 1 + 0 + 26 + 630 + 9 = 666.

10266309 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 8105409 + 2160900 = 2847^2 + 1470^2 .

It is not a de Polignac number, because 10266309 - 2¹ = 10266307 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10266307) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2287 + ... + 5075.

It is an arithmetic number, because the mean of its divisors is an integer number (1239225).

Almost surely, 2^10266309 is an apocalyptic number.

It is an amenable number.

10266309 is a deficient number, since it is larger than the sum of its proper divisors (4604391).

10266309 is a wasteful number, since it uses less digits than its factorization.

10266309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3204 (or 3201 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 10266309 is about 3204.1081442423. The cubic root of 10266309 is about 217.3392232356.

The spelling of 10266309 in words is "ten million, two hundred sixty-six thousand, three hundred nine".