1129268 has 24 divisors (see below), whose sum is σ = 2333184. Its totient is φ = 468000.

The previous prime is 1129253. The next prime is 1129283. The reversal of 1129268 is 8629211.

It is an interprime number because it is at equal distance from previous prime (1129253) and next prime (1129283).

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 1129268.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218 + ... + 1518.

It is an arithmetic number, because the mean of its divisors is an integer number (97216).

2^1129268 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1129268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1166592).

1129268 is an abundant number, since it is smaller than the sum of its proper divisors (1203916).

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

1129268 is a wasteful number, since it uses less digits than its factorization.

1129268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1343 (or 1341 counting only the distinct ones).

The product of its digits is 1728, while the sum is 29.

The square root of 1129268 is about 1062.6702216586. The cubic root of 1129268 is about 104.1355481091.

The spelling of 1129268 in words is "one million, one hundred twenty-nine thousand, two hundred sixty-eight".