7944256 has 28 divisors (see below), whose sum is σ = 15933420. Its totient is φ = 3929600.

The previous prime is 7944241. The next prime is 7944259. The reversal of 7944256 is 6524497.

It can be written as a sum of positive squares in 2 ways, for example, as 7750656 + 193600 = 2784^2 + 440^2 .

It is a super-2 number, since 2×7944256² = 126222406787072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7944259) 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, 5850 + ... + 7078.

Almost surely, 2^7944256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7944256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7966710).

7944256 is an abundant number, since it is smaller than the sum of its proper divisors (7989164).

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

7944256 is a wasteful number, since it uses less digits than its factorization.

7944256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1342 (or 1332 counting only the distinct ones).

The product of its digits is 60480, while the sum is 37.

The square root of 7944256 is about 2818.5556584889. Note that the first 3 decimals coincide. The cubic root of 7944256 is about 199.5343835143.

It can be divided in two parts, 794 and 4256, that added together give a triangular number (5050 = T₁₀₀).

The spelling of 7944256 in words is "seven million, nine hundred forty-four thousand, two hundred fifty-six".