11980380 has 24 divisors (see below), whose sum is σ = 33545232. Its totient is φ = 3194752.

The previous prime is 11980357. The next prime is 11980399. The reversal of 11980380 is 8308911.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99777 + ... + 99896.

It is an arithmetic number, because the mean of its divisors is an integer number (1397718).

Almost surely, 2^11980380 is an apocalyptic number.

11980380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11980380 is an abundant number, since it is smaller than the sum of its proper divisors (21564852).

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

11980380 is a wasteful number, since it uses less digits than its factorization.

11980380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199685 (or 199683 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 30.

The square root of 11980380 is about 3461.2685535797. The cubic root of 11980380 is about 228.8180065946.

The spelling of 11980380 in words is "eleven million, nine hundred eighty thousand, three hundred eighty".