1025808 has 80 divisors (see below), whose sum is σ = 3142656. Its totient is φ = 282240.

The previous prime is 1025807. The next prime is 1025819. The reversal of 1025808 is 8085201.

1025808 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (1025803) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14413 + ... + 14483.

2^1025808 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 1025808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1571328).

1025808 is an abundant number, since it is smaller than the sum of its proper divisors (2116848).

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

1025808 is a wasteful number, since it uses less digits than its factorization.

1025808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132 (or 126 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 24.

The square root of 1025808 is about 1012.8218007132. The cubic root of 1025808 is about 100.8529703955.

It can be divided in two parts, 102 and 5808, that multiplied together give a triangular number (592416 = T₁₀₈₈).

The spelling of 1025808 in words is "one million, twenty-five thousand, eight hundred eight".