10003266 has 96 divisors (see below), whose sum is σ = 27675648. Its totient is φ = 2540160.

The previous prime is 10003247. The next prime is 10003277. The reversal of 10003266 is 66230001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 50680 + ... + 50876.

It is an arithmetic number, because the mean of its divisors is an integer number (288288).

Almost surely, 2^10003266 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10003266, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13837824).

10003266 is an abundant number, since it is smaller than the sum of its proper divisors (17672382).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10003266 is a wasteful number, since it uses less digits than its factorization.

10003266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256 (or 253 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 10003266 is about 3162.7940179531. The cubic root of 10003266 is about 215.4669210626.

Adding to 10003266 its reverse (66230001), we get a palindrome (76233267).

The spelling of 10003266 in words is "ten million, three thousand, two hundred sixty-six".