1189319040 has 384 divisors, whose sum is σ = 5056833600. Its totient is φ = 250822656.

The previous prime is 1189319039. The next prime is 1189319081. The reversal of 1189319040 is 409139811.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1189318986 and 1189319004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 523026 + ... + 525294.

Almost surely, 2^1189319040 is an apocalyptic number.

1189319040 is a gapful number since it is divisible by the number (10) 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 1189319040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2528416800).

1189319040 is an abundant number, since it is smaller than the sum of its proper divisors (3867514560).

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

1189319040 is a wasteful number, since it uses less digits than its factorization.

1189319040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2314 (or 2299 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The square root of 1189319040 is about 34486.5051868118. The cubic root of 1189319040 is about 1059.4963312621.

The spelling of 1189319040 in words is "one billion, one hundred eighty-nine million, three hundred nineteen thousand, forty".