2573728 has 12 divisors (see below), whose sum is σ = 5067090. Its totient is φ = 1286848.

The previous prime is 2573717. The next prime is 2573729. The reversal of 2573728 is 8273752.

It can be written as a sum of positive squares in only one way, i.e., 2521744 + 51984 = 1588^2 + 228^2 .

It is a d-powerful number, because it can be written as 2¹¹ + 5⁹ + 7² + 3¹⁰ + 7⁴ + 2¹⁹ + 8⁵ .

It is a junction number, because it is equal to n+sod(n) for n = 2573693 and 2573702.

It is not an unprimeable number, because it can be changed into a prime (2573729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40183 + ... + 40246.

2^2573728 is an apocalyptic number.

It is an amenable number.

2573728 is a deficient number, since it is larger than the sum of its proper divisors (2493362).

2573728 is an equidigital number, since it uses as much as digits as its factorization.

2573728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80439 (or 80431 counting only the distinct ones).

The product of its digits is 23520, while the sum is 34.

The square root of 2573728 is about 1604.2842640879. The cubic root of 2573728 is about 137.0421665008.

The spelling of 2573728 in words is "two million, five hundred seventy-three thousand, seven hundred twenty-eight".