11920816 has 10 divisors (see below), whose sum is σ = 23096612. Its totient is φ = 5960400.

The previous prime is 11920807. The next prime is 11920837. The reversal of 11920816 is 61802911.

It is a happy 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 as a sum of consecutive naturals, namely, 372510 + ... + 372541.

Almost surely, 2^11920816 is an apocalyptic number.

11920816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11920816 is a deficient number, since it is larger than the sum of its proper divisors (11175796).

11920816 is an equidigital number, since it uses as much as digits as its factorization.

11920816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745059 (or 745053 counting only the distinct ones).

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

The square root of 11920816 is about 3452.6534723311. The cubic root of 11920816 is about 228.4381642821.

The spelling of 11920816 in words is "eleven million, nine hundred twenty thousand, eight hundred sixteen".