2139238080 has 672 divisors, whose sum is σ = 9117665280. Its totient is φ = 470292480.

The previous prime is 2139238043. The next prime is 2139238121. The reversal of 2139238080 is 808329312.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (672).

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

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 13124079 + ... + 13124241.

Almost surely, 2^2139238080 is an apocalyptic number.

2139238080 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 2139238080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4558832640).

2139238080 is an abundant number, since it is smaller than the sum of its proper divisors (6978427200).

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

2139238080 is a wasteful number, since it uses less digits than its factorization.

2139238080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234 (or 211 counting only the distinct ones).

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

The square root of 2139238080 is about 46251.8981232122. The cubic root of 2139238080 is about 1288.5057874926.

The spelling of 2139238080 in words is "two billion, one hundred thirty-nine million, two hundred thirty-eight thousand, eighty".