7287040 has 36 divisors (see below), whose sum is σ = 17457804. Its totient is φ = 2914304.

The previous prime is 7287037. The next prime is 7287043. The reversal of 7287040 is 407827.

It is an interprime number because it is at equal distance from previous prime (7287037) and next prime (7287043).

It can be written as a sum of positive squares in 2 ways, for example, as 1679616 + 5607424 = 1296^2 + 2368^2 .

It is not an unprimeable number, because it can be changed into a prime (7287043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1567 + ... + 4126.

It is an arithmetic number, because the mean of its divisors is an integer number (484939).

Almost surely, 2^7287040 is an apocalyptic number.

It is an amenable number.

7287040 is an abundant number, since it is smaller than the sum of its proper divisors (10170764).

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

7287040 is an equidigital number, since it uses as much as digits as its factorization.

7287040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5714 (or 5700 counting only the distinct ones).

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

The square root of 7287040 is about 2699.4517961986. The cubic root of 7287040 is about 193.8728752305.

The spelling of 7287040 in words is "seven million, two hundred eighty-seven thousand, forty".