321988050 has 72 divisors (see below), whose sum is σ = 868956660. Its totient is φ = 85478400.

The previous prime is 321988049. The next prime is 321988087. The reversal of 321988050 is 50889123.

321988050 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 53978409 + 268009641 = 7347^2 + 16371^2 .

It is a junction number, because it is equal to n+sod(n) for n = 321987996 and 321988014.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 106966 + ... + 109934.

Almost surely, 2^321988050 is an apocalyptic number.

321988050 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 321988050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (434478330).

321988050 is an abundant number, since it is smaller than the sum of its proper divisors (546968610).

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

321988050 is a wasteful number, since it uses less digits than its factorization.

321988050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3228 (or 3220 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 321988050 is about 17944.0254681050. The cubic root of 321988050 is about 685.4039211154.

The spelling of 321988050 in words is "three hundred twenty-one million, nine hundred eighty-eight thousand, fifty".