2104821328 has 20 divisors (see below), whose sum is σ = 4079152980. Its totient is φ = 1052136704.

The previous prime is 2104821293. The next prime is 2104821347. The reversal of 2104821328 is 8231284012.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 120297024 + 1984524304 = 10968^2 + 44548^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2104821328.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55626 + ... + 85462.

It is an arithmetic number, because the mean of its divisors is an integer number (203957649).

Almost surely, 2^2104821328 is an apocalyptic number.

It is an amenable number.

2104821328 is a deficient number, since it is larger than the sum of its proper divisors (1974331652).

2104821328 is a wasteful number, since it uses less digits than its factorization.

2104821328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34254 (or 34248 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 2104821328 is about 45878.3317918165. The cubic root of 2104821328 is about 1281.5584305795.

The spelling of 2104821328 in words is "two billion, one hundred four million, eight hundred twenty-one thousand, three hundred twenty-eight".