1003266 has 40 divisors (see below), whose sum is σ = 2456784. Its totient is φ = 303480.

The previous prime is 1003259. The next prime is 1003273. The reversal of 1003266 is 6623001.

It is a happy number.

1003266 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1003259) and next prime (1003273).

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

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1501 + ... + 2063.

2^1003266 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1003266, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1228392).

1003266 is an abundant number, since it is smaller than the sum of its proper divisors (1453518).

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

1003266 is a wasteful number, since it uses less digits than its factorization.

1003266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588 (or 579 counting only the distinct ones).

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

The square root of 1003266 is about 1001.6316688284. The cubic root of 1003266 is about 100.1087483617.

Adding to 1003266 its reverse (6623001), we get a palindrome (7626267).

The spelling of 1003266 in words is "one million, three thousand, two hundred sixty-six".