7428544 has 56 divisors (see below), whose sum is σ = 16002000. Its totient is φ = 3409920.

The previous prime is 7428539. The next prime is 7428571. The reversal of 7428544 is 4458247.

It is a happy number.

It is a congruent number.

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, 49782 + ... + 49930.

It is an arithmetic number, because the mean of its divisors is an integer number (285750).

Almost surely, 2^7428544 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 7428544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8001000).

7428544 is an abundant number, since it is smaller than the sum of its proper divisors (8573456).

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

7428544 is a wasteful number, since it uses less digits than its factorization.

7428544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221 (or 211 counting only the distinct ones).

The product of its digits is 35840, while the sum is 34.

The square root of 7428544 is about 2725.5355437051. The cubic root of 7428544 is about 195.1197511215.

The spelling of 7428544 in words is "seven million, four hundred twenty-eight thousand, five hundred forty-four".