7280368040 has 32 divisors (see below), whose sum is σ = 17869995360. Its totient is φ = 2647406400.

The previous prime is 7280368033. The next prime is 7280368063. The reversal of 7280368040 is 408630827.

It is a junction number, because it is equal to n+sod(n) for n = 7280367985 and 7280368003.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 8272706 + ... + 8273585.

It is an arithmetic number, because the mean of its divisors is an integer number (558437355).

Almost surely, 2^7280368040 is an apocalyptic number.

It is an amenable number.

7280368040 is an abundant number, since it is smaller than the sum of its proper divisors (10589627320).

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

7280368040 is a wasteful number, since it uses less digits than its factorization.

7280368040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16546313 (or 16546309 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 7280368040 is about 85325.0727512142. The cubic root of 7280368040 is about 1938.1368763871.

Adding to 7280368040 its reverse (408630827), we get a palindrome (7688998867).

The spelling of 7280368040 in words is "seven billion, two hundred eighty million, three hundred sixty-eight thousand, forty".