7944136 has 16 divisors (see below), whose sum is σ = 14929740. Its totient is φ = 3962880.

The previous prime is 7944133. The next prime is 7944143. The reversal of 7944136 is 6314497.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6280036 + 1664100 = 2506^2 + 1290^2 .

It is not an unprimeable number, because it can be changed into a prime (7944133) 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 3 ways as a sum of consecutive naturals, for example, 3756 + ... + 5476.

Almost surely, 2^7944136 is an apocalyptic number.

It is an amenable number.

7944136 is a deficient number, since it is larger than the sum of its proper divisors (6985604).

7944136 is a wasteful number, since it uses less digits than its factorization.

7944136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2304 (or 2300 counting only the distinct ones).

The product of its digits is 18144, while the sum is 34.

The square root of 7944136 is about 2818.5343709098. The cubic root of 7944136 is about 199.5333788368.

The spelling of 7944136 in words is "seven million, nine hundred forty-four thousand, one hundred thirty-six".