1028648 has 16 divisors (see below), whose sum is σ = 1956960. Its totient is φ = 506800.

The previous prime is 1028647. The next prime is 1028663. The reversal of 1028648 is 8468201.

1028648 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 1028648.

It is not an unprimeable number, because it can be changed into a prime (1028647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 338 + ... + 1473.

It is an arithmetic number, because the mean of its divisors is an integer number (122310).

2^1028648 is an apocalyptic number.

It is an amenable number.

1028648 is a deficient number, since it is larger than the sum of its proper divisors (928312).

1028648 is a wasteful number, since it uses less digits than its factorization.

1028648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1888 (or 1884 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 1028648 is about 1014.2228551951. Note that the first 3 decimals coincide. The cubic root of 1028648 is about 100.9459567753.

The spelling of 1028648 in words is "one million, twenty-eight thousand, six hundred forty-eight".