2204855940 has 144 divisors (see below), whose sum is σ = 7204982400. Its totient is φ = 502322688.

The previous prime is 2204855927. The next prime is 2204855977. The reversal of 2204855940 is 495584022.

It is a super-2 number, since 2×2204855940² = 9722779432306567200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1054416 + ... + 1056504.

It is an arithmetic number, because the mean of its divisors is an integer number (50034600).

Almost surely, 2^2204855940 is an apocalyptic number.

2204855940 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 2204855940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3602491200).

2204855940 is an abundant number, since it is smaller than the sum of its proper divisors (5000126460).

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

2204855940 is a wasteful number, since it uses less digits than its factorization.

2204855940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2474 (or 2465 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 39.

The square root of 2204855940 is about 46955.8935598078. The cubic root of 2204855940 is about 1301.5476518561.

The spelling of 2204855940 in words is "two billion, two hundred four million, eight hundred fifty-five thousand, nine hundred forty".