2503728 has 30 divisors (see below), whose sum is σ = 7007364. Its totient is φ = 834528.

The previous prime is 2503717. The next prime is 2503729. The reversal of 2503728 is 8273052.

It is not an unprimeable number, because it can be changed into a prime (2503729) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8550 + ... + 8837.

2^2503728 is an apocalyptic number.

It is an amenable number.

2503728 is an abundant number, since it is smaller than the sum of its proper divisors (4503636).

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

2503728 is a wasteful number, since it uses less digits than its factorization.

2503728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17401 (or 17392 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 2503728 is about 1582.3172880304. The cubic root of 2503728 is about 135.7883096501.

The spelling of 2503728 in words is "two million, five hundred three thousand, seven hundred twenty-eight".