1028396800 has 54 divisors (see below), whose sum is σ = 2545458608. Its totient is φ = 411356160.

The previous prime is 1028396783. The next prime is 1028396843. The reversal of 1028396800 is 86938201.

It is a self number, because there is not a number n which added to its sum of digits gives 1028396800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73944 + ... + 86743.

Almost surely, 2^1028396800 is an apocalyptic number.

1028396800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1028396800 is an abundant number, since it is smaller than the sum of its proper divisors (1517061808).

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

1028396800 is an equidigital number, since it uses as much as digits as its factorization.

1028396800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160713 (or 160694 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 1028396800 is about 32068.6264127418. The cubic root of 1028396800 is about 1009.3773896942.

The spelling of 1028396800 in words is "one billion, twenty-eight million, three hundred ninety-six thousand, eight hundred".