11928920 has 16 divisors (see below), whose sum is σ = 26840160. Its totient is φ = 4771552.

The previous prime is 11928919. The next prime is 11928949. The reversal of 11928920 is 2982911.

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, 149072 + ... + 149151.

It is an arithmetic number, because the mean of its divisors is an integer number (1677510).

Almost surely, 2^11928920 is an apocalyptic number.

11928920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11928920 is an abundant number, since it is smaller than the sum of its proper divisors (14911240).

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

11928920 is a wasteful number, since it uses less digits than its factorization.

11928920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298234 (or 298230 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 11928920 is about 3453.8268630607. The cubic root of 11928920 is about 228.4899181088.

The spelling of 11928920 in words is "eleven million, nine hundred twenty-eight thousand, nine hundred twenty".