7290745 has 32 divisors (see below), whose sum is σ = 11301120. Its totient is φ = 4381440.

The previous prime is 7290721. The next prime is 7290749. The reversal of 7290745 is 5470927.

It is not a de Polignac number, because 7290745 - 2⁹ = 7290233 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 7290745.

It is not an unprimeable number, because it can be changed into a prime (7290749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10839 + ... + 11491.

It is an arithmetic number, because the mean of its divisors is an integer number (353160).

Almost surely, 2^7290745 is an apocalyptic number.

It is an amenable number.

7290745 is a deficient number, since it is larger than the sum of its proper divisors (4010375).

7290745 is a wasteful number, since it uses less digits than its factorization.

7290745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705.

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 7290745 is about 2700.1379594384. The cubic root of 7290745 is about 193.9057270377.

The spelling of 7290745 in words is "seven million, two hundred ninety thousand, seven hundred forty-five".