2728426 has 4 divisors (see below), whose sum is σ = 4092642. Its totient is φ = 1364212.

The previous prime is 2728409. The next prime is 2728447. The reversal of 2728426 is 6248272.

2728426 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1962801 + 765625 = 1401^2 + 875^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 682105 + ... + 682108.

2^2728426 is an apocalyptic number.

2728426 is a deficient number, since it is larger than the sum of its proper divisors (1364216).

2728426 is a wasteful number, since it uses less digits than its factorization.

2728426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1364215.

The product of its digits is 10752, while the sum is 31.

The square root of 2728426 is about 1651.7947814423. The cubic root of 2728426 is about 139.7346333762.

The spelling of 2728426 in words is "two million, seven hundred twenty-eight thousand, four hundred twenty-six".