2183539380 has 144 divisors (see below), whose sum is σ = 6822070080. Its totient is φ = 521442240.

The previous prime is 2183539367. The next prime is 2183539387. The reversal of 2183539380 is 839353812.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2183539387) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 32590107 + ... + 32590173.

Almost surely, 2^2183539380 is an apocalyptic number.

2183539380 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 2183539380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3411035040).

2183539380 is an abundant number, since it is smaller than the sum of its proper divisors (4638530700).

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

2183539380 is an equidigital number, since it uses as much as digits as its factorization.

2183539380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235 (or 88 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 2183539380 is about 46728.3573432664. The cubic root of 2183539380 is about 1297.3396046917.

The spelling of 2183539380 in words is "two billion, one hundred eighty-three million, five hundred thirty-nine thousand, three hundred eighty".