2204640256 has 176 divisors, whose sum is σ = 5529847680. Its totient is φ = 855244800.

The previous prime is 2204640247. The next prime is 2204640323. The reversal of 2204640256 is 6520464022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5497656 + ... + 5498056.

Almost surely, 2^2204640256 is an apocalyptic number.

2204640256 is a gapful number since it is divisible by the number (26) 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 2204640256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2764923840).

2204640256 is an abundant number, since it is smaller than the sum of its proper divisors (3325207424).

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

2204640256 is a wasteful number, since it uses less digits than its factorization.

2204640256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500 (or 482 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 31.

The square root of 2204640256 is about 46953.5968377291. The cubic root of 2204640256 is about 1301.5052103595.

The spelling of 2204640256 in words is "two billion, two hundred four million, six hundred forty thousand, two hundred fifty-six".