7285818 has 24 divisors (see below), whose sum is σ = 14992992. Its totient is φ = 2360304.

The previous prime is 7285813. The next prime is 7285819. The reversal of 7285818 is 8185827.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7285813) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 7771 + ... + 8657.

It is an arithmetic number, because the mean of its divisors is an integer number (624708).

Almost surely, 2^7285818 is an apocalyptic number.

7285818 is an abundant number, since it is smaller than the sum of its proper divisors (7707174).

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

7285818 is a wasteful number, since it uses less digits than its factorization.

7285818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 966 (or 929 counting only the distinct ones).

The product of its digits is 35840, while the sum is 39.

The square root of 7285818 is about 2699.2254444562. The cubic root of 7285818 is about 193.8620374556.

Subtracting 7285818 from its reverse (8185827), we obtain a palindrome (900009).

The spelling of 7285818 in words is "seven million, two hundred eighty-five thousand, eight hundred eighteen".