1155740 has 12 divisors (see below), whose sum is σ = 2427096. Its totient is φ = 462288.

The previous prime is 1155733. The next prime is 1155821. The reversal of 1155740 is 475511.

1155740 is nontrivially palindromic in base 8.

1155740 is an esthetic number in base 8, because in such base its adjacent digits differ by 1.

It is a congruent 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, 28874 + ... + 28913.

It is an arithmetic number, because the mean of its divisors is an integer number (202258).

2^1155740 is an apocalyptic number.

1155740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1155740 is an abundant number, since it is smaller than the sum of its proper divisors (1271356).

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

1155740 is a wasteful number, since it uses less digits than its factorization.

1155740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57796 (or 57794 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 23.

The square root of 1155740 is about 1075.0534870415. The cubic root of 1155740 is about 104.9429773526.

The spelling of 1155740 in words is "one million, one hundred fifty-five thousand, seven hundred forty".