192138896 has 40 divisors (see below), whose sum is σ = 398646360. Its totient is φ = 89391104.

The previous prime is 192138871. The next prime is 192138901. The reversal of 192138896 is 698831291.

It can be written as a sum of positive squares in 4 ways, for example, as 83978896 + 108160000 = 9164^2 + 10400^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 192138896.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20240 + ... + 28176.

It is an arithmetic number, because the mean of its divisors is an integer number (9966159).

Almost surely, 2^192138896 is an apocalyptic number.

192138896 is a gapful number since it is divisible by the number (16) 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 192138896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (199323180).

192138896 is an abundant number, since it is smaller than the sum of its proper divisors (206507464).

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

192138896 is a wasteful number, since it uses less digits than its factorization.

192138896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8051 (or 8045 counting only the distinct ones).

The product of its digits is 186624, while the sum is 47.

The square root of 192138896 is about 13861.4175321285. The cubic root of 192138896 is about 577.0389075744.

The spelling of 192138896 in words is "one hundred ninety-two million, one hundred thirty-eight thousand, eight hundred ninety-six".