7944432 has 80 divisors (see below), whose sum is σ = 22379520. Its totient is φ = 2419200.

The previous prime is 7944373. The next prime is 7944437. The reversal of 7944432 is 2344497.

It is a super-2 number, since 2×7944432² = 126227999605248, which contains 22 as substring.

Its product of digits (24192) is a multiple of the sum of its prime divisors (336).

It is a junction number, because it is equal to n+sod(n) for n = 7944393 and 7944402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7944437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28132 + ... + 28412.

It is an arithmetic number, because the mean of its divisors is an integer number (279744).

Almost surely, 2^7944432 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 7944432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11189760).

7944432 is an abundant number, since it is smaller than the sum of its proper divisors (14435088).

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

7944432 is a wasteful number, since it uses less digits than its factorization.

7944432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342 (or 336 counting only the distinct ones).

The product of its digits is 24192, while the sum is 33.

The square root of 7944432 is about 2818.5868799808. The cubic root of 7944432 is about 199.5358570231.

The spelling of 7944432 in words is "seven million, nine hundred forty-four thousand, four hundred thirty-two".