192989238 has 64 divisors (see below), whose sum is σ = 431972352. Its totient is φ = 57098880.

The previous prime is 192989233. The next prime is 192989239. The reversal of 192989238 is 832989291.

It is a super-3 number, since 3×192989238³ (a number of 26 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (192989233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 223195 + ... + 224057.

It is an arithmetic number, because the mean of its divisors is an integer number (6749568).

Almost surely, 2^192989238 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 192989238, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215986176).

192989238 is an abundant number, since it is smaller than the sum of its proper divisors (238983114).

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

192989238 is a wasteful number, since it uses less digits than its factorization.

192989238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 989.

The product of its digits is 559872, while the sum is 51.

The square root of 192989238 is about 13892.0566511946. The cubic root of 192989238 is about 577.8889147679. Note that the first 3 decimals are identical.

The spelling of 192989238 in words is "one hundred ninety-two million, nine hundred eighty-nine thousand, two hundred thirty-eight".