1025388 has 72 divisors (see below), whose sum is σ = 3200288. Its totient is φ = 269568.

The previous prime is 1025383. The next prime is 1025393. The reversal of 1025388 is 8835201.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1025383) and next prime (1025393).

It is a zygodrome in base 6.

It is not an unprimeable number, because it can be changed into a prime (1025383) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3120 + ... + 3432.

2^1025388 is an apocalyptic number.

1025388 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1025388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1600144).

1025388 is an abundant number, since it is smaller than the sum of its proper divisors (2174900).

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

1025388 is a wasteful number, since it uses less digits than its factorization.

1025388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343 (or 338 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 1025388 is about 1012.6144379773. The cubic root of 1025388 is about 100.8392043269.

The spelling of 1025388 in words is "one million, twenty-five thousand, three hundred eighty-eight".