2205402656 has 96 divisors (see below), whose sum is σ = 5050200960. Its totient is φ = 940363776.

The previous prime is 2205402653. The next prime is 2205402671. The reversal of 2205402656 is 6562045022.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (2205402653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 233090 + ... + 242366.

It is an arithmetic number, because the mean of its divisors is an integer number (52606260).

Almost surely, 2^2205402656 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 2205402656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2525100480).

2205402656 is an abundant number, since it is smaller than the sum of its proper divisors (2844798304).

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

2205402656 is a wasteful number, since it uses less digits than its factorization.

2205402656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9346 (or 9338 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 2205402656 is about 46961.7147898158. The cubic root of 2205402656 is about 1301.6552202021.

Adding to 2205402656 its reverse (6562045022), we get a palindrome (8767447678).

The spelling of 2205402656 in words is "two billion, two hundred five million, four hundred two thousand, six hundred fifty-six".