1999084032 has 120 divisors (see below), whose sum is σ = 6294150720. Its totient is φ = 605767680.

The previous prime is 1999084001. The next prime is 1999084067. The reversal of 1999084032 is 2304809991.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30969 + ... + 70407.

It is an arithmetic number, because the mean of its divisors is an integer number (52451256).

Almost surely, 2^1999084032 is an apocalyptic number.

1999084032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1999084032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3147075360).

1999084032 is an abundant number, since it is smaller than the sum of its proper divisors (4295066688).

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

1999084032 is a wasteful number, since it uses less digits than its factorization.

1999084032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39474 (or 39455 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 1999084032 is about 44711.1175436267. The cubic root of 1999084032 is about 1259.7286792970.

The spelling of 1999084032 in words is "one billion, nine hundred ninety-nine million, eighty-four thousand, thirty-two".