2400728 has 16 divisors (see below), whose sum is σ = 4910760. Its totient is φ = 1091200.

The previous prime is 2400719. The next prime is 2400767. The reversal of 2400728 is 8270042.

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, 13553 + ... + 13728.

2^2400728 is an apocalyptic number.

It is an amenable number.

2400728 is an abundant number, since it is smaller than the sum of its proper divisors (2510032).

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

2400728 is a wasteful number, since it uses less digits than its factorization.

2400728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27298 (or 27294 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 2400728 is about 1549.4282816575. The cubic root of 2400728 is about 133.9001260698.

The spelling of 2400728 in words is "two million, four hundred thousand, seven hundred twenty-eight".