11916280 has 16 divisors (see below), whose sum is σ = 26811720. Its totient is φ = 4766496.

The previous prime is 11916271. The next prime is 11916313. The reversal of 11916280 is 8261911.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148914 + ... + 148993.

Almost surely, 2^11916280 is an apocalyptic number.

11916280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11916280 is an abundant number, since it is smaller than the sum of its proper divisors (14895440).

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

11916280 is a wasteful number, since it uses less digits than its factorization.

11916280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297918 (or 297914 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 28.

The square root of 11916280 is about 3451.9965237526. The cubic root of 11916280 is about 228.4091862052.

The spelling of 11916280 in words is "eleven million, nine hundred sixteen thousand, two hundred eighty".