4190939 has 4 divisors (see below), whose sum is σ = 4196160. Its totient is φ = 4185720.

The previous prime is 4190933. The next prime is 4190957. The reversal of 4190939 is 9390914.

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

It is a cyclic number.

It is not a de Polignac number, because 4190939 - 2¹² = 4186843 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4190899 and 4190908.

It is not an unprimeable number, because it can be changed into a prime (4190933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1124 + ... + 3105.

It is an arithmetic number, because the mean of its divisors is an integer number (1049040).

Almost surely, 2^4190939 is an apocalyptic number.

4190939 is a deficient number, since it is larger than the sum of its proper divisors (5221).

4190939 is an equidigital number, since it uses as much as digits as its factorization.

4190939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5220.

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 4190939 is about 2047.1783019561. The cubic root of 4190939 is about 161.2267550572.

The spelling of 4190939 in words is "four million, one hundred ninety thousand, nine hundred thirty-nine".