192115438 has 4 divisors (see below), whose sum is σ = 288173160. Its totient is φ = 96057718.

The previous prime is 192115361. The next prime is 192115447. The reversal of 192115438 is 834511291.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48028858 + ... + 48028861.

It is an arithmetic number, because the mean of its divisors is an integer number (72043290).

Almost surely, 2^192115438 is an apocalyptic number.

192115438 is a deficient number, since it is larger than the sum of its proper divisors (96057722).

192115438 is an equidigital number, since it uses as much as digits as its factorization.

192115438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96057721.

The product of its digits is 8640, while the sum is 34.

The square root of 192115438 is about 13860.5713446452. The cubic root of 192115438 is about 577.0154232967.

It can be divided in two parts, 19211 and 5438, that added together give a square (24649 = 157²).

The spelling of 192115438 in words is "one hundred ninety-two million, one hundred fifteen thousand, four hundred thirty-eight".