3269728 has 48 divisors (see below), whose sum is σ = 8031744. Its totient is φ = 1272960.

The previous prime is 3269723. The next prime is 3269753. The reversal of 3269728 is 8279623.

It is a super-2 number, since 2×3269728² = 21382242387968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3269723) 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, 1801 + ... + 3127.

It is an arithmetic number, because the mean of its divisors is an integer number (167328).

Almost surely, 2^3269728 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 3269728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4015872).

3269728 is an abundant number, since it is smaller than the sum of its proper divisors (4762016).

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

3269728 is a wasteful number, since it uses less digits than its factorization.

3269728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1355 (or 1347 counting only the distinct ones).

The product of its digits is 36288, while the sum is 37.

The square root of 3269728 is about 1808.2389222666. The cubic root of 3269728 is about 148.4239124700.

The spelling of 3269728 in words is "three million, two hundred sixty-nine thousand, seven hundred twenty-eight".