1184668380 has 144 divisors (see below), whose sum is σ = 4119111360. Its totient is φ = 269973504.

The previous prime is 1184668367. The next prime is 1184668421. The reversal of 1184668380 is 838664811.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 488932 + ... + 491348.

It is an arithmetic number, because the mean of its divisors is an integer number (28604940).

Almost surely, 2^1184668380 is an apocalyptic number.

1184668380 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 1184668380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2059555680).

1184668380 is an abundant number, since it is smaller than the sum of its proper divisors (2934442980).

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

1184668380 is a wasteful number, since it uses less digits than its factorization.

1184668380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2828 (or 2823 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The square root of 1184668380 is about 34419.0118974964. The cubic root of 1184668380 is about 1058.1135249101.

The spelling of 1184668380 in words is "one billion, one hundred eighty-four million, six hundred sixty-eight thousand, three hundred eighty".