9132720 has 40 divisors (see below), whose sum is σ = 28312176. Its totient is φ = 2435328.

The previous prime is 9132719. The next prime is 9132731. The reversal of 9132720 is 272319.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (24).

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 7 ways as a sum of consecutive naturals, for example, 18787 + ... + 19266.

Almost surely, 2^9132720 is an apocalyptic number.

It is an amenable number.

9132720 is an abundant number, since it is smaller than the sum of its proper divisors (19179456).

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

9132720 is a wasteful number, since it uses less digits than its factorization.

9132720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38069 (or 38063 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 9132720 is about 3022.0390467365. The cubic root of 9132720 is about 209.0258737989.

The spelling of 9132720 in words is "nine million, one hundred thirty-two thousand, seven hundred twenty".