2204170056 has 160 divisors (see below), whose sum is σ = 6967857600. Its totient is φ = 644837760.

The previous prime is 2204170043. The next prime is 2204170057. The reversal of 2204170056 is 6500714022.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2204170057) 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, 201381 + ... + 212043.

It is an arithmetic number, because the mean of its divisors is an integer number (43549110).

Almost surely, 2^2204170056 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 2204170056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3483928800).

2204170056 is an abundant number, since it is smaller than the sum of its proper divisors (4763687544).

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

2204170056 is a wasteful number, since it uses less digits than its factorization.

2204170056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10721 (or 10708 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 2204170056 is about 46948.5894995792. The cubic root of 2204170056 is about 1301.4126765535.

Adding to 2204170056 its reverse (6500714022), we get a palindrome (8704884078).

The spelling of 2204170056 in words is "two billion, two hundred four million, one hundred seventy thousand, fifty-six".