1129340 has 12 divisors (see below), whose sum is σ = 2371656. Its totient is φ = 451728.

The previous prime is 1129333. The next prime is 1129343. The reversal of 1129340 is 439211.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 56467 = 1129340 / (1 + 1 + 2 + 9 + 3 + 4 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1129343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28214 + ... + 28253.

It is an arithmetic number, because the mean of its divisors is an integer number (197638).

2^1129340 is an apocalyptic number.

1129340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1129340 is an abundant number, since it is smaller than the sum of its proper divisors (1242316).

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

1129340 is a wasteful number, since it uses less digits than its factorization.

1129340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56476 (or 56474 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 1129340 is about 1062.7040980442. The cubic root of 1129340 is about 104.1377612242.

The spelling of 1129340 in words is "one million, one hundred twenty-nine thousand, three hundred forty".