11780920 has 16 divisors (see below), whose sum is σ = 26507160. Its totient is φ = 4712352.

The previous prime is 11780903. The next prime is 11780921. The reversal of 11780920 is 2908711.

11780920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11780921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147222 + ... + 147301.

Almost surely, 2^11780920 is an apocalyptic number.

11780920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11780920 is an abundant number, since it is smaller than the sum of its proper divisors (14726240).

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

11780920 is a wasteful number, since it uses less digits than its factorization.

11780920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294534 (or 294530 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 11780920 is about 3432.3344825352. The cubic root of 11780920 is about 227.5410383641.

The spelling of 11780920 in words is "eleven million, seven hundred eighty thousand, nine hundred twenty".