1028251392 has 144 divisors (see below), whose sum is σ = 3311868672. Its totient is φ = 276480000.

The previous prime is 1028251381. The next prime is 1028251403. The reversal of 1028251392 is 2931528201.

It is a happy number.

1028251392 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1028251381) and next prime (1028251403).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85767 + ... + 97017.

It is an arithmetic number, because the mean of its divisors is an integer number (22999088).

Almost surely, 2^1028251392 is an apocalyptic number.

1028251392 is a gapful number since it is divisible by the number (12) 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 1028251392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1655934336).

1028251392 is an abundant number, since it is smaller than the sum of its proper divisors (2283617280).

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

1028251392 is a wasteful number, since it uses less digits than its factorization.

1028251392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11294 (or 11280 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 1028251392 is about 32066.3591946451. The cubic root of 1028251392 is about 1009.3298145217.

Adding to 1028251392 its reverse (2931528201), we get a palindrome (3959779593).

The spelling of 1028251392 in words is "one billion, twenty-eight million, two hundred fifty-one thousand, three hundred ninety-two".