2199993900 has 144 divisors (see below), whose sum is σ = 6900537504. Its totient is φ = 537937920.

The previous prime is 2199993899. The next prime is 2199993931. The reversal of 2199993900 is 93999912.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 610504 + ... + 614096.

Almost surely, 2^2199993900 is an apocalyptic number.

2199993900 is a gapful number since it is divisible by the number (20) 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 2199993900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3450268752).

2199993900 is an abundant number, since it is smaller than the sum of its proper divisors (4700543604).

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

2199993900 is a wasteful number, since it uses less digits than its factorization.

2199993900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3780 (or 3773 counting only the distinct ones).

The product of its (nonzero) digits is 354294, while the sum is 51.

The square root of 2199993900 is about 46904.0925719707. The cubic root of 2199993900 is about 1300.5902447885.

The spelling of 2199993900 in words is "two billion, one hundred ninety-nine million, nine hundred ninety-three thousand, nine hundred".