1189268108 has 24 divisors (see below), whose sum is σ = 2380896672. Its totient is φ = 509180544.

The previous prime is 1189268081. The next prime is 1189268111. The reversal of 1189268108 is 8018629811.

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, 8366 + ... + 49482.

It is an arithmetic number, because the mean of its divisors is an integer number (99204028).

Almost surely, 2^1189268108 is an apocalyptic number.

It is an amenable number.

1189268108 is an abundant number, since it is smaller than the sum of its proper divisors (1191628564).

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

1189268108 is a wasteful number, since it uses less digits than its factorization.

1189268108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42161 (or 42159 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 44.

The square root of 1189268108 is about 34485.7667451370. The cubic root of 1189268108 is about 1059.4812069107.

The spelling of 1189268108 in words is "one billion, one hundred eighty-nine million, two hundred sixty-eight thousand, one hundred eight".