2139340896 has 384 divisors, whose sum is σ = 7895301120. Its totient is φ = 554273280.

The previous prime is 2139340873. The next prime is 2139340909. The reversal of 2139340896 is 6980439312.

It is a happy number.

2139340896 is a `hidden beast` number, since 213 + 9 + 340 + 8 + 96 = 666.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5388570 + ... + 5388966.

It is an arithmetic number, because the mean of its divisors is an integer number (20560680).

Almost surely, 2^2139340896 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2139340896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3947650560).

2139340896 is an abundant number, since it is smaller than the sum of its proper divisors (5755960224).

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

2139340896 is an equidigital number, since it uses as much as digits as its factorization.

2139340896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446 (or 420 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 2139340896 is about 46253.0095885662. The cubic root of 2139340896 is about 1288.5264298714.

The spelling of 2139340896 in words is "two billion, one hundred thirty-nine million, three hundred forty thousand, eight hundred ninety-six".