2195930868 has 48 divisors (see below), whose sum is σ = 5448643200. Its totient is φ = 685947904.

The previous prime is 2195930843. The next prime is 2195930903. The reversal of 2195930868 is 8680395912.

It is a happy number.

It is a super-2 number, since 2×2195930868² = 9644224754070466848, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 2195930868.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24433 + ... + 70631.

It is an arithmetic number, because the mean of its divisors is an integer number (113513400).

Almost surely, 2^2195930868 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2195930868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2724321600).

2195930868 is an abundant number, since it is smaller than the sum of its proper divisors (3252712332).

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

2195930868 is a wasteful number, since it uses less digits than its factorization.

2195930868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46456 (or 46454 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 51.

The square root of 2195930868 is about 46860.7604291693. The cubic root of 2195930868 is about 1299.7890916229.

The spelling of 2195930868 in words is "two billion, one hundred ninety-five million, nine hundred thirty thousand, eight hundred sixty-eight".