1181490468 has 12 divisors (see below), whose sum is σ = 2756811120. Its totient is φ = 393830152.

The previous prime is 1181490461. The next prime is 1181490487. The reversal of 1181490468 is 8640941811.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (1181490461) 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 3 ways as a sum of consecutive naturals, for example, 49228758 + ... + 49228781.

It is an arithmetic number, because the mean of its divisors is an integer number (229734260).

Almost surely, 2^1181490468 is an apocalyptic number.

It is an amenable number.

1181490468 is an abundant number, since it is smaller than the sum of its proper divisors (1575320652).

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

1181490468 is a wasteful number, since it uses less digits than its factorization.

1181490468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98457546 (or 98457544 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 42.

The square root of 1181490468 is about 34372.8158287912. The cubic root of 1181490468 is about 1057.1665361526.

The spelling of 1181490468 in words is "one billion, one hundred eighty-one million, four hundred ninety thousand, four hundred sixty-eight".