2005998870 has 16 divisors (see below), whose sum is σ = 4814397360. Its totient is φ = 534933024.

The previous prime is 2005998859. The next prime is 2005998877. The reversal of 2005998870 is 788995002.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2005998877) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33433285 + ... + 33433344.

It is an arithmetic number, because the mean of its divisors is an integer number (300899835).

Almost surely, 2^2005998870 is an apocalyptic number.

2005998870 is an abundant number, since it is smaller than the sum of its proper divisors (2808398490).

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

2005998870 is a wasteful number, since it uses less digits than its factorization.

2005998870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66866639.

The product of its (nonzero) digits is 362880, while the sum is 48.

The square root of 2005998870 is about 44788.3787382397. The cubic root of 2005998870 is about 1261.1794763076.

The spelling of 2005998870 in words is "two billion, five million, nine hundred ninety-eight thousand, eight hundred seventy".