2192839656 has 128 divisors (see below), whose sum is σ = 6718464000. Its totient is φ = 582147072.

The previous prime is 2192839637. The next prime is 2192839699. The reversal of 2192839656 is 6569382912.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a junction number, because it is equal to n+sod(n) for n = 2192839599 and 2192839608.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 220765 + ... + 230483.

It is an arithmetic number, because the mean of its divisors is an integer number (52488000).

Almost surely, 2^2192839656 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 2192839656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3359232000).

2192839656 is an abundant number, since it is smaller than the sum of its proper divisors (4525624344).

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

2192839656 is a wasteful number, since it uses less digits than its factorization.

2192839656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9831 (or 9827 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 51.

The square root of 2192839656 is about 46827.7658659902. The cubic root of 2192839656 is about 1299.1789008202.

The spelling of 2192839656 in words is "two billion, one hundred ninety-two million, eight hundred thirty-nine thousand, six hundred fifty-six".