1025668 has 18 divisors (see below), whose sum is σ = 2088366. Its totient is φ = 439488.

The previous prime is 1025659. The next prime is 1025669. The reversal of 1025668 is 8665201.

1025668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1016064 + 9604 = 1008^2 + 98^2 .

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an Ulam number.

It is a zygodrome in base 6.

It is not an unprimeable number, because it can be changed into a prime (1025669) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2421 + ... + 2812.

2^1025668 is an apocalyptic number.

It is an amenable number.

1025668 is an abundant number, since it is smaller than the sum of its proper divisors (1062698).

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

1025668 is a wasteful number, since it uses less digits than its factorization.

1025668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5251 (or 5242 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 1025668 is about 1012.7526845188. The cubic root of 1025668 is about 100.8483821236.

The spelling of 1025668 in words is "one million, twenty-five thousand, six hundred sixty-eight".