193823642 has 4 divisors (see below), whose sum is σ = 290735466. Its totient is φ = 96911820.

The previous prime is 193823621. The next prime is 193823671. The reversal of 193823642 is 246328391.

193823642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 112805641 + 81018001 = 10621^2 + 9001^2 .

It is a junction number, because it is equal to n+sod(n) for n = 193823596 and 193823605.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48455909 + ... + 48455912.

Almost surely, 2^193823642 is an apocalyptic number.

193823642 is a deficient number, since it is larger than the sum of its proper divisors (96911824).

193823642 is an equidigital number, since it uses as much as digits as its factorization.

193823642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96911823.

The product of its digits is 62208, while the sum is 38.

The square root of 193823642 is about 13922.0559544918. The cubic root of 193823642 is about 578.7205665890.

The spelling of 193823642 in words is "one hundred ninety-three million, eight hundred twenty-three thousand, six hundred forty-two".