11721360 has 80 divisors (see below), whose sum is σ = 41533056. Its totient is φ = 2678784.

The previous prime is 11721349. The next prime is 11721371. The reversal of 11721360 is 6312711.

It is an interprime number because it is at equal distance from previous prime (11721349) and next prime (11721371).

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (21).

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 15 ways as a sum of consecutive naturals, for example, 1809 + ... + 5168.

Almost surely, 2^11721360 is an apocalyptic number.

11721360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11721360 is an abundant number, since it is smaller than the sum of its proper divisors (29811696).

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

11721360 is a wasteful number, since it uses less digits than its factorization.

11721360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7000 (or 6994 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 11721360 is about 3423.6471780836. The cubic root of 11721360 is about 227.1569357314.

The spelling of 11721360 in words is "eleven million, seven hundred twenty-one thousand, three hundred sixty".