1189388232 has 32 divisors (see below), whose sum is σ = 3303856800. Its totient is φ = 396462672.

The previous prime is 1189388231. The next prime is 1189388327. The reversal of 1189388232 is 2328839811.

It is a happy number.

1189388232 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1189388231) 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, 2752998 + ... + 2753429.

It is an arithmetic number, because the mean of its divisors is an integer number (103245525).

Almost surely, 2^1189388232 is an apocalyptic number.

1189388232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1189388232 is an abundant number, since it is smaller than the sum of its proper divisors (2114468568).

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

1189388232 is a wasteful number, since it uses less digits than its factorization.

1189388232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5506442 (or 5506432 counting only the distinct ones).

The product of its digits is 165888, while the sum is 45.

The square root of 1189388232 is about 34487.5083472262. The cubic root of 1189388232 is about 1059.5168772626.

The spelling of 1189388232 in words is "one billion, one hundred eighty-nine million, three hundred eighty-eight thousand, two hundred thirty-two".