1025992 has 32 divisors (see below), whose sum is σ = 2138400. Its totient is φ = 457600.

The previous prime is 1025957. The next prime is 1026029. The reversal of 1025992 is 2995201.

It is a self number, because there is not a number n which added to its sum of digits gives 1025992.

It is a congruent number.

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, 7767 + ... + 7897.

It is an arithmetic number, because the mean of its divisors is an integer number (66825).

2^1025992 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 1025992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1069200).

1025992 is an abundant number, since it is smaller than the sum of its proper divisors (1112408).

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

1025992 is a wasteful number, since it uses less digits than its factorization.

1025992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237 (or 233 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 1025992 is about 1012.9126319678. The cubic root of 1025992 is about 100.8590000610.

The spelling of 1025992 in words is "one million, twenty-five thousand, nine hundred ninety-two".