2196854784 has 480 divisors, whose sum is σ = 7491884400. Its totient is φ = 637009920.

The previous prime is 2196854753. The next prime is 2196854789. The reversal of 2196854784 is 4874586912.

It is a happy number.

2196854784 is a `hidden beast` number, since 2 + 1 + 96 + 8 + 547 + 8 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 2196854784.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2196854789) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 53581804 + ... + 53581844.

Almost surely, 2^2196854784 is an apocalyptic number.

2196854784 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 2196854784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3745942200).

2196854784 is an abundant number, since it is smaller than the sum of its proper divisors (5295029616).

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

2196854784 is a wasteful number, since it uses less digits than its factorization.

2196854784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111 (or 82 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 54.

The square root of 2196854784 is about 46870.6174911319. The cubic root of 2196854784 is about 1299.9713571598.

The spelling of 2196854784 in words is "two billion, one hundred ninety-six million, eight hundred fifty-four thousand, seven hundred eighty-four".