2403728 has 20 divisors (see below), whose sum is σ = 4902960. Its totient is φ = 1138464.

The previous prime is 2403701. The next prime is 2403773. The reversal of 2403728 is 8273042.

It is a d-powerful number, because it can be written as 2⁵ + 4¹⁰ + 0 + 3¹² + 7⁷ + 2⁷ + 8 .

It is a junction number, because it is equal to n+sod(n) for n = 2403697 and 2403706.

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, 3650 + ... + 4257.

It is an arithmetic number, because the mean of its divisors is an integer number (245148).

2^2403728 is an apocalyptic number.

It is an amenable number.

2403728 is an abundant number, since it is smaller than the sum of its proper divisors (2499232).

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

2403728 is a wasteful number, since it uses less digits than its factorization.

2403728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7934 (or 7928 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 2403728 is about 1550.3960784264. The cubic root of 2403728 is about 133.9558776543.

The spelling of 2403728 in words is "two million, four hundred three thousand, seven hundred twenty-eight".