192138210 has 64 divisors (see below), whose sum is σ = 558956160. Its totient is φ = 46578240.

The previous prime is 192138139. The next prime is 192138223. The reversal of 192138210 is 12831291.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29377 + ... + 35316.

It is an arithmetic number, because the mean of its divisors is an integer number (8733690).

Almost surely, 2^192138210 is an apocalyptic number.

192138210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

192138210 is an abundant number, since it is smaller than the sum of its proper divisors (366817950).

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

192138210 is a wasteful number, since it uses less digits than its factorization.

192138210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64720 (or 64714 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 192138210 is about 13861.3927871625. The cubic root of 192138210 is about 577.0382208331.

The spelling of 192138210 in words is "one hundred ninety-two million, one hundred thirty-eight thousand, two hundred ten".