1999934000 has 80 divisors (see below), whose sum is σ = 4991990016. Its totient is φ = 774144000.

The previous prime is 1999933997. The next prime is 1999934011. The reversal of 1999934000 is 4399991.

1999934000 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45872 + ... + 78128.

Almost surely, 2^1999934000 is an apocalyptic number.

1999934000 is a gapful number since it is divisible by the number (10) 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 1999934000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2495995008).

1999934000 is an abundant number, since it is smaller than the sum of its proper divisors (2992056016).

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

1999934000 is a wasteful number, since it uses less digits than its factorization.

1999934000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32311 (or 32295 counting only the distinct ones).

The product of its (nonzero) digits is 78732, while the sum is 44.

The square root of 1999934000 is about 44720.6216414754. The cubic root of 1999934000 is about 1259.9071906109.

The spelling of 1999934000 in words is "one billion, nine hundred ninety-nine million, nine hundred thirty-four thousand".