7033728 has 64 divisors (see below), whose sum is σ = 20134800. Its totient is φ = 2162688.

The previous prime is 7033723. The next prime is 7033729. The reversal of 7033728 is 8273307.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 7033695 and 7033704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7033721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4288 + ... + 5696.

Almost surely, 2^7033728 is an apocalyptic number.

7033728 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7033728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10067400).

7033728 is an abundant number, since it is smaller than the sum of its proper divisors (13101072).

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

7033728 is a wasteful number, since it uses less digits than its factorization.

7033728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1439 (or 1427 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 7033728 is about 2652.1176444494. The cubic root of 7033728 is about 191.5998611116.

The spelling of 7033728 in words is "seven million, thirty-three thousand, seven hundred twenty-eight".