1129260 has 96 divisors (see below), whose sum is σ = 3628800. Its totient is φ = 259840.

The previous prime is 1129253. The next prime is 1129283. The reversal of 1129260 is 629211.

1129260 = 88² + 89² + ... + 159².

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19111 + ... + 19169.

It is an arithmetic number, because the mean of its divisors is an integer number (37800).

2^1129260 is an apocalyptic number.

1129260 is a gapful number since it is divisible by the number (10) 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 1129260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1814400).

1129260 is an abundant number, since it is smaller than the sum of its proper divisors (2499540).

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

1129260 is a wasteful number, since it uses less digits than its factorization.

1129260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111 (or 109 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 1129260 is about 1062.6664575491. Note that the first 3 decimals coincide. The cubic root of 1129260 is about 104.1353022016.

The spelling of 1129260 in words is "one million, one hundred twenty-nine thousand, two hundred sixty".