2205842949 has 24 divisors (see below), whose sum is σ = 3393542880. Its totient is φ = 1430811216.

The previous prime is 2205842909. The next prime is 2205842959. The reversal of 2205842949 is 9492485022.

2205842949 is a `hidden beast` number, since 2 + 2 + 0 + 584 + 29 + 49 = 666.

2205842949 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2205842949 - 2⁸ = 2205842693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2205842909) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 113679 + ... + 131660.

It is an arithmetic number, because the mean of its divisors is an integer number (141397620).

Almost surely, 2^2205842949 is an apocalyptic number.

It is an amenable number.

2205842949 is a deficient number, since it is larger than the sum of its proper divisors (1187699931).

2205842949 is an equidigital number, since it uses as much as digits as its factorization.

2205842949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245391 (or 245379 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The square root of 2205842949 is about 46966.4023425257. The cubic root of 2205842949 is about 1301.7418365162.

The spelling of 2205842949 in words is "two billion, two hundred five million, eight hundred forty-two thousand, nine hundred forty-nine".