1132780 has 48 divisors (see below), whose sum is σ = 2741760. Its totient is φ = 388800.

The previous prime is 1132753. The next prime is 1132783. The reversal of 1132780 is 872311.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1132783) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4045 + ... + 4315.

It is an arithmetic number, because the mean of its divisors is an integer number (57120).

2^1132780 is an apocalyptic number.

1132780 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 1132780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1370880).

1132780 is an abundant number, since it is smaller than the sum of its proper divisors (1608980).

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

1132780 is a wasteful number, since it uses less digits than its factorization.

1132780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310 (or 308 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 1132780 is about 1064.3213800352. The cubic root of 1132780 is about 104.2433895212.

The spelling of 1132780 in words is "one million, one hundred thirty-two thousand, seven hundred eighty".