1001268 has 48 divisors (see below), whose sum is σ = 2652160. Its totient is φ = 326592.

The previous prime is 1001267. The next prime is 1001279. The reversal of 1001268 is 8621001.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1001268.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7821 + ... + 7947.

2^1001268 is an apocalyptic number.

1001268 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1001268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1326080).

1001268 is an abundant number, since it is smaller than the sum of its proper divisors (1650892).

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

1001268 is a wasteful number, since it uses less digits than its factorization.

1001268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213 (or 205 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 1001268 is about 1000.6337991493. The cubic root of 1001268 is about 100.0422488145.

Adding to 1001268 its reverse (8621001), we get a palindrome (9622269).

The spelling of 1001268 in words is "one million, one thousand, two hundred sixty-eight".