1025872 has 20 divisors (see below), whose sum is σ = 2011156. Its totient is φ = 506880.

The previous prime is 1025839. The next prime is 1025873. The reversal of 1025872 is 2785201.

It can be written as a sum of positive squares in 2 ways, for example, as 646416 + 379456 = 804^2 + 616^2 .

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025873) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 1222 + ... + 1882.

2^1025872 is an apocalyptic number.

It is an amenable number.

1025872 is a deficient number, since it is larger than the sum of its proper divisors (985284).

1025872 is an equidigital number, since it uses as much as digits as its factorization.

1025872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766 (or 760 counting only the distinct ones).

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

The square root of 1025872 is about 1012.8533951170. The cubic root of 1025872 is about 100.8550677522.

The spelling of 1025872 in words is "one million, twenty-five thousand, eight hundred seventy-two".