1189373328 has 240 divisors, whose sum is σ = 4035545280. Its totient is φ = 332467200.

The previous prime is 1189373321. The next prime is 1189373333. The reversal of 1189373328 is 8233739811.

It is a happy number.

It is a super-3 number, since 3×1189373328³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1189373321) 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 47 ways as a sum of consecutive naturals, for example, 802348 + ... + 803828.

It is an arithmetic number, because the mean of its divisors is an integer number (16814772).

Almost surely, 2^1189373328 is an apocalyptic number.

1189373328 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1189373328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2017772640).

1189373328 is an abundant number, since it is smaller than the sum of its proper divisors (2846171952).

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

1189373328 is a wasteful number, since it uses less digits than its factorization.

1189373328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1535 (or 1510 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 1189373328 is about 34487.2922683124. The cubic root of 1189373328 is about 1059.5124517086.

It can be divided in two parts, 118937 and 3328, that added together give a triangular number (122265 = T₄₉₄).

The spelling of 1189373328 in words is "one billion, one hundred eighty-nine million, three hundred seventy-three thousand, three hundred twenty-eight".