7280722 has 8 divisors (see below), whose sum is σ = 11273472. Its totient is φ = 3522900.

The previous prime is 7280701. The next prime is 7280731. The reversal of 7280722 is 2270827.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 58654 + ... + 58777.

It is an arithmetic number, because the mean of its divisors is an integer number (1409184).

Almost surely, 2^7280722 is an apocalyptic number.

7280722 is a deficient number, since it is larger than the sum of its proper divisors (3992750).

7280722 is a wasteful number, since it uses less digits than its factorization.

7280722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117464.

The product of its (nonzero) digits is 3136, while the sum is 28.

The square root of 7280722 is about 2698.2813048309. The cubic root of 7280722 is about 193.8168285596.

The spelling of 7280722 in words is "seven million, two hundred eighty thousand, seven hundred twenty-two".