1189738368 has 480 divisors, whose sum is σ = 4426828560. Its totient is φ = 310542336.

The previous prime is 1189738343. The next prime is 1189738373. The reversal of 1189738368 is 8638379811.

1189738368 is a `hidden beast` number, since 118 + 97 + 383 + 68 = 666.

1189738368 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 12265296 + ... + 12265392.

Almost surely, 2^1189738368 is an apocalyptic number.

1189738368 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 1189738368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2213414280).

1189738368 is an abundant number, since it is smaller than the sum of its proper divisors (3237090192).

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

1189738368 is an equidigital number, since it uses as much as digits as its factorization.

1189738368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156 (or 122 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 54.

The square root of 1189738368 is about 34492.5842464725. The cubic root of 1189738368 is about 1059.6208350773.

The spelling of 1189738368 in words is "one billion, one hundred eighty-nine million, seven hundred thirty-eight thousand, three hundred sixty-eight".