1028890200 has 96 divisors (see below), whose sum is σ = 3434936400. Its totient is φ = 253263360.

The previous prime is 1028890183. The next prime is 1028890231. The reversal of 1028890200 is 20988201.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58155 + ... + 73754.

Almost surely, 2^1028890200 is an apocalyptic number.

1028890200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1028890200 is an abundant number, since it is smaller than the sum of its proper divisors (2406046200).

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

1028890200 is a wasteful number, since it uses less digits than its factorization.

1028890200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131941 (or 131932 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 1028890200 is about 32076.3183672940. The cubic root of 1028890200 is about 1009.5387888669.

The spelling of 1028890200 in words is "one billion, twenty-eight million, eight hundred ninety thousand, two hundred".