2204945820 has 384 divisors, whose sum is σ = 9005875200. Its totient is φ = 433900800.

The previous prime is 2204945819. The next prime is 2204945843. The reversal of 2204945820 is 285494022.

2204945820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 788625 + ... + 791415.

It is an arithmetic number, because the mean of its divisors is an integer number (23452800).

Almost surely, 2^2204945820 is an apocalyptic number.

2204945820 is a gapful number since it is divisible by the number (20) 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 2204945820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4502937600).

2204945820 is an abundant number, since it is smaller than the sum of its proper divisors (6800929380).

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

2204945820 is a wasteful number, since it uses less digits than its factorization.

2204945820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2846 (or 2838 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 2204945820 is about 46956.8506184135. The cubic root of 2204945820 is about 1301.5653372918.

The spelling of 2204945820 in words is "two billion, two hundred four million, nine hundred forty-five thousand, eight hundred twenty".