1189422080 has 264 divisors, whose sum is σ = 3629183616. Its totient is φ = 369868800.

The previous prime is 1189422079. The next prime is 1189422083. The reversal of 1189422080 is 802249811.

1189422080 is digitally balanced in base 6, 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 (35).

It is a self number, because there is not a number n which added to its sum of digits gives 1189422080.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1189422083) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2759465 + ... + 2759895.

Almost surely, 2^1189422080 is an apocalyptic number.

1189422080 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 1189422080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1814591808).

1189422080 is an abundant number, since it is smaller than the sum of its proper divisors (2439761536).

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

1189422080 is a wasteful number, since it uses less digits than its factorization.

1189422080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481 (or 456 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 35.

The square root of 1189422080 is about 34487.9990721410. Note that the first 3 decimals coincide. The cubic root of 1189422080 is about 1059.5269278600.

The spelling of 1189422080 in words is "one billion, one hundred eighty-nine million, four hundred twenty-two thousand, eighty".