1181440216 has 32 divisors (see below), whose sum is σ = 2543774400. Its totient is φ = 508753440.

The previous prime is 1181440207. The next prime is 1181440223. The reversal of 1181440216 is 6120441811.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 351630 + ... + 354973.

It is an arithmetic number, because the mean of its divisors is an integer number (79492950).

Almost surely, 2^1181440216 is an apocalyptic number.

It is an amenable number.

1181440216 is an abundant number, since it is smaller than the sum of its proper divisors (1362334184).

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

1181440216 is a wasteful number, since it uses less digits than its factorization.

1181440216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706639 (or 706635 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 1181440216 is about 34372.0848363901. The cubic root of 1181440216 is about 1057.1515478850.

The spelling of 1181440216 in words is "one billion, one hundred eighty-one million, four hundred forty thousand, two hundred sixteen".