2164492044 has 360 divisors, whose sum is σ = 6964535424. Its totient is φ = 581644800.

The previous prime is 2164492021. The next prime is 2164492051. The reversal of 2164492044 is 4402944612.

It is a happy number.

2164492044 is a `hidden beast` number, since 2 + 1 + 6 + 449 + 204 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 15799144 + ... + 15799280.

Almost surely, 2^2164492044 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 2164492044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3482267712).

2164492044 is an abundant number, since it is smaller than the sum of its proper divisors (4800043380).

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

2164492044 is a wasteful number, since it uses less digits than its factorization.

2164492044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219 (or 197 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The square root of 2164492044 is about 46524.1017538222. The cubic root of 2164492044 is about 1293.5562875691.

The spelling of 2164492044 in words is "two billion, one hundred sixty-four million, four hundred ninety-two thousand, forty-four".