5731328 has 44 divisors (see below), whose sum is σ = 11913540. Its totient is φ = 2752512.

The previous prime is 5731309. The next prime is 5731339. The reversal of 5731328 is 8231375.

It can be written as a sum of positive squares in 2 ways, for example, as 2166784 + 3564544 = 1472^2 + 1888^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a self number, because there is not a number n which added to its sum of digits gives 5731328.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29600 + ... + 29792.

Almost surely, 2^5731328 is an apocalyptic number.

5731328 is a gapful number since it is divisible by the number (58) 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 5731328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5956770).

5731328 is an abundant number, since it is smaller than the sum of its proper divisors (6182212).

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

5731328 is a wasteful number, since it uses less digits than its factorization.

5731328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242 (or 224 counting only the distinct ones).

The product of its digits is 5040, while the sum is 29.

The square root of 5731328 is about 2394.0192146263. The cubic root of 5731328 is about 178.9582624825.

The spelling of 5731328 in words is "five million, seven hundred thirty-one thousand, three hundred twenty-eight".