2139210080 has 48 divisors (see below), whose sum is σ = 5775870240. Its totient is φ = 733443072.

The previous prime is 2139210071. The next prime is 2139210083. The reversal of 2139210080 is 800129312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2139210083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 953885 + ... + 956124.

It is an arithmetic number, because the mean of its divisors is an integer number (120330630).

Almost surely, 2^2139210080 is an apocalyptic number.

2139210080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2139210080 is an abundant number, since it is smaller than the sum of its proper divisors (3636660160).

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

2139210080 is a wasteful number, since it uses less digits than its factorization.

2139210080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1910031 (or 1910023 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 2139210080 is about 46251.5954319416. The cubic root of 2139210080 is about 1288.5001658151.

Adding to 2139210080 its reverse (800129312), we get a palindrome (2939339392).

The spelling of 2139210080 in words is "two billion, one hundred thirty-nine million, two hundred ten thousand, eighty".