192105640 has 16 divisors (see below), whose sum is σ = 432237780. Its totient is φ = 76842240.

The previous prime is 192105631. The next prime is 192105649. The reversal of 192105640 is 46501291.

192105640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (192105631) and next prime (192105649).

It can be written as a sum of positive squares in 2 ways, for example, as 186431716 + 5673924 = 13654^2 + 2382^2 .

It is a junction number, because it is equal to n+sod(n) for n = 192105599 and 192105608.

It is not an unprimeable number, because it can be changed into a prime (192105649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2401281 + ... + 2401360.

Almost surely, 2^192105640 is an apocalyptic number.

192105640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

192105640 is an abundant number, since it is smaller than the sum of its proper divisors (240132140).

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

192105640 is a wasteful number, since it uses less digits than its factorization.

192105640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4802652 (or 4802648 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 192105640 is about 13860.2178915052. The cubic root of 192105640 is about 577.0056137549.

The spelling of 192105640 in words is "one hundred ninety-two million, one hundred five thousand, six hundred forty".