7287944 has 16 divisors (see below), whose sum is σ = 14384400. Its totient is φ = 3452112.

The previous prime is 7287919. The next prime is 7287947. The reversal of 7287944 is 4497827.

It is a super-2 number, since 2×7287944² = 106228255494272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7287947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23822 + ... + 24125.

It is an arithmetic number, because the mean of its divisors is an integer number (899025).

Almost surely, 2^7287944 is an apocalyptic number.

It is an amenable number.

7287944 is a deficient number, since it is larger than the sum of its proper divisors (7096456).

7287944 is a wasteful number, since it uses less digits than its factorization.

7287944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47972 (or 47968 counting only the distinct ones).

The product of its digits is 112896, while the sum is 41.

The square root of 7287944 is about 2699.6192324104. The cubic root of 7287944 is about 193.8808919209.

The spelling of 7287944 in words is "seven million, two hundred eighty-seven thousand, nine hundred forty-four".