1025728 has 56 divisors (see below), whose sum is σ = 2340864. Its totient is φ = 441600.

The previous prime is 1025707. The next prime is 1025741. The reversal of 1025728 is 8275201.

1025728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21801 + ... + 21847.

2^1025728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1025728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1170432).

1025728 is an abundant number, since it is smaller than the sum of its proper divisors (1315136).

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

1025728 is a wasteful number, since it uses less digits than its factorization.

1025728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101 (or 91 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 1025728 is about 1012.7823063225. The cubic root of 1025728 is about 100.8503485769.

The spelling of 1025728 in words is "one million, twenty-five thousand, seven hundred twenty-eight".