2192681238 has 16 divisors (see below), whose sum is σ = 4784031936. Its totient is φ = 664448840.

The previous prime is 2192681237. The next prime is 2192681269. The reversal of 2192681238 is 8321862912.

It is a super-2 number, since 2×2192681238² = 9615702022954425288, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2192681238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2192681237) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 16611156 + ... + 16611287.

It is an arithmetic number, because the mean of its divisors is an integer number (299001996).

Almost surely, 2^2192681238 is an apocalyptic number.

2192681238 is an abundant number, since it is smaller than the sum of its proper divisors (2591350698).

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

2192681238 is a wasteful number, since it uses less digits than its factorization.

2192681238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33222459.

The product of its digits is 82944, while the sum is 42.

The square root of 2192681238 is about 46826.0743389834. The cubic root of 2192681238 is about 1299.1476144045.

The spelling of 2192681238 in words is "two billion, one hundred ninety-two million, six hundred eighty-one thousand, two hundred thirty-eight".