11660380 has 12 divisors (see below), whose sum is σ = 24486840. Its totient is φ = 4664144.

The previous prime is 11660339. The next prime is 11660381. The reversal of 11660380 is 8306611.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11660381) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 291490 + ... + 291529.

It is an arithmetic number, because the mean of its divisors is an integer number (2040570).

Almost surely, 2^11660380 is an apocalyptic number.

11660380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11660380 is an abundant number, since it is smaller than the sum of its proper divisors (12826460).

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

11660380 is a wasteful number, since it uses less digits than its factorization.

11660380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583028 (or 583026 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 11660380 is about 3414.7298575436. The cubic root of 11660380 is about 226.7623250607.

Adding to 11660380 its reverse (8306611), we get a palindrome (19966991).

The spelling of 11660380 in words is "eleven million, six hundred sixty thousand, three hundred eighty".