7428344 has 64 divisors (see below), whose sum is σ = 17971200. Its totient is φ = 2793600.

The previous prime is 7428341. The next prime is 7428349. The reversal of 7428344 is 4438247.

It is a self number, because there is not a number n which added to its sum of digits gives 7428344.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7428341) 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, 18902 + ... + 19290.

It is an arithmetic number, because the mean of its divisors is an integer number (280800).

Almost surely, 2^7428344 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 7428344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8985600).

7428344 is an abundant number, since it is smaller than the sum of its proper divisors (10542856).

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

7428344 is a wasteful number, since it uses less digits than its factorization.

7428344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444 (or 440 counting only the distinct ones).

The product of its digits is 21504, while the sum is 32.

The square root of 7428344 is about 2725.4988534211. The cubic root of 7428344 is about 195.1180000247.

The spelling of 7428344 in words is "seven million, four hundred twenty-eight thousand, three hundred forty-four".