193942 has 12 divisors (see below), whose sum is σ = 338580. Its totient is φ = 83076.

The previous prime is 193939. The next prime is 193943. The reversal of 193942 is 249391.

It is a happy number.

It is a super-2 number, since 2×193942² = 75226998728, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 193942.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (193943) 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 5 ways as a sum of consecutive naturals, for example, 892 + ... + 1087.

It is an arithmetic number, because the mean of its divisors is an integer number (28215).

2¹⁹³⁹⁴² is an apocalyptic number.

193942 is a deficient number, since it is larger than the sum of its proper divisors (144638).

193942 is a wasteful number, since it uses less digits than its factorization.

193942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1995 (or 1988 counting only the distinct ones).

The product of its digits is 1944, while the sum is 28.

The square root of 193942 is about 440.3884648807. The cubic root of 193942 is about 57.8838340786.

The spelling of 193942 in words is "one hundred ninety-three thousand, nine hundred forty-two".