1200898000 has 40 divisors (see below), whose sum is σ = 2903776200. Its totient is φ = 480358400.

The previous prime is 1200897991. The next prime is 1200898031. The reversal of 1200898000 is 8980021.

It can be written as a sum of positive squares in 4 ways, for example, as 13957696 + 1186940304 = 3736^2 + 34452^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 1200898000.

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, 298225 + ... + 302224.

It is an arithmetic number, because the mean of its divisors is an integer number (72594405).

Almost surely, 2^1200898000 is an apocalyptic number.

1200898000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1200898000 is an abundant number, since it is smaller than the sum of its proper divisors (1702878200).

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

1200898000 is an equidigital number, since it uses as much as digits as its factorization.

1200898000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600472 (or 600456 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 1200898000 is about 34653.9752409446. The cubic root of 1200898000 is about 1062.9235773652.

The spelling of 1200898000 in words is "one billion, two hundred million, eight hundred ninety-eight thousand".