11308720 has 20 divisors (see below), whose sum is σ = 26292960. Its totient is φ = 4523456.

The previous prime is 11308697. The next prime is 11308733. The reversal of 11308720 is 2780311.

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 11308691 and 11308700.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70600 + ... + 70759.

It is an arithmetic number, because the mean of its divisors is an integer number (1314648).

Almost surely, 2^11308720 is an apocalyptic number.

11308720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11308720 is an abundant number, since it is smaller than the sum of its proper divisors (14984240).

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

11308720 is a wasteful number, since it uses less digits than its factorization.

11308720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141372 (or 141366 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 11308720 is about 3362.8440344447. The cubic root of 11308720 is about 224.4594100257.

The spelling of 11308720 in words is "eleven million, three hundred eight thousand, seven hundred twenty".