2183261904 has 80 divisors (see below), whose sum is σ = 6277693440. Its totient is φ = 726485760.

The previous prime is 2183261819. The next prime is 2183261909. The reversal of 2183261904 is 4091623812.

2183261904 is a `hidden beast` number, since 2 + 1 + 8 + 32 + 619 + 0 + 4 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2183261909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 262449 + ... + 270639.

It is an arithmetic number, because the mean of its divisors is an integer number (78471168).

Almost surely, 2^2183261904 is an apocalyptic number.

2183261904 is a gapful number since it is divisible by the number (24) 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 2183261904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3138846720).

2183261904 is an abundant number, since it is smaller than the sum of its proper divisors (4094431536).

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

2183261904 is a wasteful number, since it uses less digits than its factorization.

2183261904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8825 (or 8813 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 2183261904 is about 46725.3882166858. The cubic root of 2183261904 is about 1297.2846486790.

The spelling of 2183261904 in words is "two billion, one hundred eighty-three million, two hundred sixty-one thousand, nine hundred four".