2197684224 has 252 divisors, whose sum is σ = 6876535176. Its totient is φ = 700710912.

The previous prime is 2197684211. The next prime is 2197684241. The reversal of 2197684224 is 4224867912.

2197684224 is a `hidden beast` number, since 219 + 7 + 6 + 8 + 422 + 4 = 666.

Its product of digits (387072) is a multiple of the sum of its prime divisors (28).

It is a self number, because there is not a number n which added to its sum of digits gives 2197684224.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 95551477 + ... + 95551499.

It is an arithmetic number, because the mean of its divisors is an integer number (27287838).

Almost surely, 2^2197684224 is an apocalyptic number.

2197684224 is a gapful number since it is divisible by the number (24) 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 2197684224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3438267588).

2197684224 is an abundant number, since it is smaller than the sum of its proper divisors (4678850952).

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

2197684224 is an frugal number, since it uses more digits than its factorization.

2197684224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75 (or 28 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 2197684224 is about 46879.4648433619. The cubic root of 2197684224 is about 1300.1349414165.

The spelling of 2197684224 in words is "two billion, one hundred ninety-seven million, six hundred eighty-four thousand, two hundred twenty-four".