1129580 has 12 divisors (see below), whose sum is σ = 2372160. Its totient is φ = 451824.

The previous prime is 1129577. The next prime is 1129603. The reversal of 1129580 is 859211.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28220 + ... + 28259.

It is an arithmetic number, because the mean of its divisors is an integer number (197680).

2^1129580 is an apocalyptic number.

1129580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1129580 is an abundant number, since it is smaller than the sum of its proper divisors (1242580).

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

1129580 is a wasteful number, since it uses less digits than its factorization.

1129580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56488 (or 56486 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 1129580 is about 1062.8170115311. The cubic root of 1129580 is about 104.1451375951.

The spelling of 1129580 in words is "one million, one hundred twenty-nine thousand, five hundred eighty".