11680380 has 36 divisors (see below), whose sum is σ = 35431032. Its totient is φ = 3114720.

The previous prime is 11680379. The next prime is 11680457. The reversal of 11680380 is 8308611.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 32266 + ... + 32625.

Almost surely, 2^11680380 is an apocalyptic number.

11680380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11680380 is an abundant number, since it is smaller than the sum of its proper divisors (23750652).

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

11680380 is a wasteful number, since it uses less digits than its factorization.

11680380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64906 (or 64901 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 11680380 is about 3417.6570922198. The cubic root of 11680380 is about 226.8918993400.

Adding to 11680380 its reverse (8308611), we get a palindrome (19988991).

The spelling of 11680380 in words is "eleven million, six hundred eighty thousand, three hundred eighty".