1155342732 has 24 divisors (see below), whose sum is σ = 2697117696. Its totient is φ = 384925968.

The previous prime is 1155342719. The next prime is 1155342733. The reversal of 1155342732 is 2372435511.

It is a junction number, because it is equal to n+sod(n) for n = 1155342693 and 1155342702.

It is not an unprimeable number, because it can be changed into a prime (1155342733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3253 + ... + 48179.

It is an arithmetic number, because the mean of its divisors is an integer number (112379904).

Almost surely, 2^1155342732 is an apocalyptic number.

1155342732 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1155342732 is an abundant number, since it is smaller than the sum of its proper divisors (1541774964).

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

1155342732 is a wasteful number, since it uses less digits than its factorization.

1155342732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47077 (or 47075 counting only the distinct ones).

The product of its digits is 25200, while the sum is 33.

The square root of 1155342732 is about 33990.3329198171. The cubic root of 1155342732 is about 1049.3095179192.

It can be divided in two parts, 11553 and 42732, that added together give a triangular number (54285 = T₃₂₉).

The spelling of 1155342732 in words is "one billion, one hundred fifty-five million, three hundred forty-two thousand, seven hundred thirty-two".