1161780232 has 32 divisors (see below), whose sum is σ = 2392689600. Its totient is φ = 526388544.

The previous prime is 1161780227. The next prime is 1161780239. The reversal of 1161780232 is 2320871611.

It is a junction number, because it is equal to n+sod(n) for n = 1161780194 and 1161780203.

It is not an unprimeable number, because it can be changed into a prime (1161780239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162663 + ... + 169654.

It is an arithmetic number, because the mean of its divisors is an integer number (74771550).

Almost surely, 2^1161780232 is an apocalyptic number.

It is an amenable number.

1161780232 is an abundant number, since it is smaller than the sum of its proper divisors (1230909368).

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

1161780232 is a wasteful number, since it uses less digits than its factorization.

1161780232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332365 (or 332361 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 1161780232 is about 34084.8974180648. The cubic root of 1161780232 is about 1051.2548058143.

The spelling of 1161780232 in words is "one billion, one hundred sixty-one million, seven hundred eighty thousand, two hundred thirty-two".