4194842 has 4 divisors (see below), whose sum is σ = 6292266. Its totient is φ = 2097420.

The previous prime is 4194823. The next prime is 4194847. The reversal of 4194842 is 2484914.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2484914 = 2 ⋅1242457.

It can be written as a sum of positive squares in only one way, i.e., 3236401 + 958441 = 1799^2 + 979^2 .

It is a d-powerful number, because it can be written as 4 + 1 + 9 + 4 + 8 + 4¹¹ + 2⁹ .

It is a junction number, because it is equal to n+sod(n) for n = 4194799 and 4194808.

It is not an unprimeable number, because it can be changed into a prime (4194847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1048709 + ... + 1048712.

Almost surely, 2^4194842 is an apocalyptic number.

4194842 is a deficient number, since it is larger than the sum of its proper divisors (2097424).

4194842 is a wasteful number, since it uses less digits than its factorization.

4194842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2097423.

The product of its digits is 9216, while the sum is 32.

The square root of 4194842 is about 2048.1313434446. The cubic root of 4194842 is about 161.2767894116.

The spelling of 4194842 in words is "four million, one hundred ninety-four thousand, eight hundred forty-two".