7280330 has 16 divisors (see below), whose sum is σ = 13410144. Its totient is φ = 2844240.

The previous prime is 7280323. The next prime is 7280341. The reversal of 7280330 is 330827.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 7280296 and 7280305.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8036 + ... + 8895.

It is an arithmetic number, because the mean of its divisors is an integer number (838134).

Almost surely, 2^7280330 is an apocalyptic number.

7280330 is a deficient number, since it is larger than the sum of its proper divisors (6129814).

7280330 is a wasteful number, since it uses less digits than its factorization.

7280330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16981.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 7280330 is about 2698.2086650220. The cubic root of 7280330 is about 193.8133500786.

The spelling of 7280330 in words is "seven million, two hundred eighty thousand, three hundred thirty".