2204979840 has 256 divisors, whose sum is σ = 8925408000. Its totient is φ = 503967744.

The previous prime is 2204979793. The next prime is 2204979851. The reversal of 2204979840 is 489794022.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 111846 + ... + 130074.

It is an arithmetic number, because the mean of its divisors is an integer number (34864875).

Almost surely, 2^2204979840 is an apocalyptic number.

2204979840 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 2204979840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4462704000).

2204979840 is an abundant number, since it is smaller than the sum of its proper divisors (6720428160).

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

2204979840 is a wasteful number, since it uses less digits than its factorization.

2204979840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18264 (or 18246 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 2204979840 is about 46957.2128644791. The cubic root of 2204979840 is about 1301.5720311864.

The spelling of 2204979840 in words is "two billion, two hundred four million, nine hundred seventy-nine thousand, eight hundred forty".