2397728 has 12 divisors (see below), whose sum is σ = 4720590. Its totient is φ = 1198848.

The previous prime is 2397719. The next prime is 2397793. The reversal of 2397728 is 8277932.

It can be written as a sum of positive squares in only one way, i.e., 1373584 + 1024144 = 1172^2 + 1012^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2397691 and 2397700.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37433 + ... + 37496.

2^2397728 is an apocalyptic number.

It is an amenable number.

2397728 is a deficient number, since it is larger than the sum of its proper divisors (2322862).

2397728 is an equidigital number, since it uses as much as digits as its factorization.

2397728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74939 (or 74931 counting only the distinct ones).

The product of its digits is 42336, while the sum is 38.

The square root of 2397728 is about 1548.4598800098. The cubic root of 2397728 is about 133.8443280203.

It can be divided in two parts, 2397 and 728, that added together give a 5-th power (3125 = 5⁵).

The spelling of 2397728 in words is "two million, three hundred ninety-seven thousand, seven hundred twenty-eight".