7330428 has 72 divisors (see below), whose sum is σ = 22305920. Its totient is φ = 1982880.

The previous prime is 7330391. The next prime is 7330439. The reversal of 7330428 is 8240337.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4023 + ... + 5553.

Almost surely, 2^7330428 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 7330428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11152960).

7330428 is an abundant number, since it is smaller than the sum of its proper divisors (14975492).

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

7330428 is a wasteful number, since it uses less digits than its factorization.

7330428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1567 (or 1562 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 7330428 is about 2707.4763156859. The cubic root of 7330428 is about 194.2568956472.

Subtracting 7330428 from its reverse (8240337), we obtain a palindrome (909909).

The spelling of 7330428 in words is "seven million, three hundred thirty thousand, four hundred twenty-eight".