1026728 has 8 divisors (see below), whose sum is σ = 1925130. Its totient is φ = 513360.

The previous prime is 1026709. The next prime is 1026733. The reversal of 1026728 is 8276201.

It can be written as a sum of positive squares in only one way, i.e., 669124 + 357604 = 818^2 + 598^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a nialpdrome in base 4 and base 16.

It is a junction number, because it is equal to n+sod(n) for n = 1026697 and 1026706.

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, 64163 + ... + 64178.

2^1026728 is an apocalyptic number.

It is an amenable number.

1026728 is a deficient number, since it is larger than the sum of its proper divisors (898402).

1026728 is a wasteful number, since it uses less digits than its factorization.

1026728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128347 (or 128343 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 1026728 is about 1013.2758755640. The cubic root of 1026728 is about 100.8831115163.

The spelling of 1026728 in words is "one million, twenty-six thousand, seven hundred twenty-eight".