1999522328 has 16 divisors (see below), whose sum is σ = 3850432080. Its totient is φ = 972740448.

The previous prime is 1999522321. The next prime is 1999522333. The reversal of 1999522328 is 8232259991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1999522321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3377276 + ... + 3377867.

It is an arithmetic number, because the mean of its divisors is an integer number (240652005).

Almost surely, 2^1999522328 is an apocalyptic number.

It is an amenable number.

1999522328 is a deficient number, since it is larger than the sum of its proper divisors (1850909752).

1999522328 is a wasteful number, since it uses less digits than its factorization.

1999522328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6755186 (or 6755182 counting only the distinct ones).

The product of its digits is 699840, while the sum is 50.

The square root of 1999522328 is about 44716.0186957649. The cubic root of 1999522328 is about 1259.8207370737.

The spelling of 1999522328 in words is "one billion, nine hundred ninety-nine million, five hundred twenty-two thousand, three hundred twenty-eight".