2190199242 has 128 divisors (see below), whose sum is σ = 5807738880. Its totient is φ = 533744640.

The previous prime is 2190199237. The next prime is 2190199279. The reversal of 2190199242 is 2429910912.

It is a self number, because there is not a number n which added to its sum of digits gives 2190199242.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 561234 + ... + 565122.

It is an arithmetic number, because the mean of its divisors is an integer number (45372960).

Almost surely, 2^2190199242 is an apocalyptic number.

2190199242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2190199242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2903869440).

2190199242 is an abundant number, since it is smaller than the sum of its proper divisors (3617539638).

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

2190199242 is a wasteful number, since it uses less digits than its factorization.

2190199242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3988.

The product of its (nonzero) digits is 23328, while the sum is 39.

The square root of 2190199242 is about 46799.5645492562. The cubic root of 2190199242 is about 1298.6572411669.

The spelling of 2190199242 in words is "two billion, one hundred ninety million, one hundred ninety-nine thousand, two hundred forty-two".