194426 has 4 divisors (see below), whose sum is σ = 291642. Its totient is φ = 97212.

The previous prime is 194413. The next prime is 194431. The reversal of 194426 is 624491.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 624491 = 7 ⋅89213.

It can be written as a sum of positive squares in only one way, i.e., 172225 + 22201 = 415^2 + 149^2 .

It is a junction number, because it is equal to n+sod(n) for n = 194395 and 194404.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48605 + ... + 48608.

194426 is a Friedman number, since it can be written as 21^4-49-6, using all its digits and the basic arithmetic operations.

2¹⁹⁴⁴²⁶ is an apocalyptic number.

194426 is a deficient number, since it is larger than the sum of its proper divisors (97216).

194426 is an equidigital number, since it uses as much as digits as its factorization.

194426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97215.

The product of its digits is 1728, while the sum is 26.

The square root of 194426 is about 440.9376373139. The cubic root of 194426 is about 57.9319455460.

The spelling of 194426 in words is "one hundred ninety-four thousand, four hundred twenty-six".