7132720 has 80 divisors (see below), whose sum is σ = 19427328. Its totient is φ = 2384640.

The previous prime is 7132709. The next prime is 7132751. The reversal of 7132720 is 272317.

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

It is a junction number, because it is equal to n+sod(n) for n = 7132691 and 7132700.

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, 26185 + ... + 26455.

Almost surely, 2^7132720 is an apocalyptic number.

7132720 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7132720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9713664).

7132720 is an abundant number, since it is smaller than the sum of its proper divisors (12294608).

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

7132720 is a wasteful number, since it uses less digits than its factorization.

7132720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338 (or 332 counting only the distinct ones).

The product of its (nonzero) digits is 588, while the sum is 22.

The square root of 7132720 is about 2670.7152600006. The cubic root of 7132720 is about 192.4945295573.

The spelling of 7132720 in words is "seven million, one hundred thirty-two thousand, seven hundred twenty".