2183940480 has 128 divisors (see below), whose sum is σ = 6974621280. Its totient is φ = 581271552.

The previous prime is 2183940469. The next prime is 2183940529. The reversal of 2183940480 is 840493812.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1683192 + ... + 1684488.

Almost surely, 2^2183940480 is an apocalyptic number.

2183940480 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 2183940480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3487310640).

2183940480 is an abundant number, since it is smaller than the sum of its proper divisors (4790680800).

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

2183940480 is a wasteful number, since it uses less digits than its factorization.

2183940480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2196 (or 2184 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 2183940480 is about 46732.6489726401. The cubic root of 2183940480 is about 1297.4190370514.

The spelling of 2183940480 in words is "two billion, one hundred eighty-three million, nine hundred forty thousand, four hundred eighty".