7944456 has 32 divisors (see below), whose sum is σ = 21389760. Its totient is φ = 2444352.

The previous prime is 7944439. The next prime is 7944473. The reversal of 7944456 is 6544497.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (7944439) and next prime (7944473).

It is a super-2 number, since 2×7944456² = 126228762271872, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12420 + ... + 13043.

It is an arithmetic number, because the mean of its divisors is an integer number (668430).

Almost surely, 2^7944456 is an apocalyptic number.

It is an amenable number.

7944456 is an abundant number, since it is smaller than the sum of its proper divisors (13445304).

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

7944456 is a wasteful number, since it uses less digits than its factorization.

7944456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25485 (or 25481 counting only the distinct ones).

The product of its digits is 120960, while the sum is 39.

The square root of 7944456 is about 2818.5911374302. The cubic root of 7944456 is about 199.5360579544.

The spelling of 7944456 in words is "seven million, nine hundred forty-four thousand, four hundred fifty-six".