11912380 has 24 divisors (see below), whose sum is σ = 25371360. Its totient is φ = 4697280.

The previous prime is 11912377. The next prime is 11912431. The reversal of 11912380 is 8321911.

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 7 ways as a sum of consecutive naturals, for example, 2775 + ... + 5614.

It is an arithmetic number, because the mean of its divisors is an integer number (1057140).

Almost surely, 2^11912380 is an apocalyptic number.

11912380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11912380 is an abundant number, since it is smaller than the sum of its proper divisors (13458980).

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

11912380 is a wasteful number, since it uses less digits than its factorization.

11912380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8469 (or 8467 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 11912380 is about 3451.4315870375. The cubic root of 11912380 is about 228.3842653120.

The spelling of 11912380 in words is "eleven million, nine hundred twelve thousand, three hundred eighty".