1155340 has 24 divisors (see below), whose sum is σ = 2468592. Its totient is φ = 454080.

The previous prime is 1155317. The next prime is 1155373. The reversal of 1155340 is 435511.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 747 + ... + 1693.

It is an arithmetic number, because the mean of its divisors is an integer number (102858).

2^1155340 is an apocalyptic number.

1155340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1155340 is an abundant number, since it is smaller than the sum of its proper divisors (1313252).

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

1155340 is a wasteful number, since it uses less digits than its factorization.

1155340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017 (or 1015 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 1155340 is about 1074.8674336866. The cubic root of 1155340 is about 104.9308690830.

The spelling of 1155340 in words is "one million, one hundred fifty-five thousand, three hundred forty".