4199842 has 4 divisors (see below), whose sum is σ = 6299766. Its totient is φ = 2099920.

The previous prime is 4199837. The next prime is 4199851. The reversal of 4199842 is 2489914.

It is a happy number.

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., 2920681 + 1279161 = 1709^2 + 1131^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1049959 + ... + 1049962.

Almost surely, 2^4199842 is an apocalyptic number.

4199842 is a deficient number, since it is larger than the sum of its proper divisors (2099924).

4199842 is a wasteful number, since it uses less digits than its factorization.

4199842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2099923.

The product of its digits is 20736, while the sum is 37.

The square root of 4199842 is about 2049.3516047765. The cubic root of 4199842 is about 161.3408413888.

It can be divided in two parts, 419984 and 2, that added together give a triangular number (419986 = T₉₁₆).

The spelling of 4199842 in words is "four million, one hundred ninety-nine thousand, eight hundred forty-two".