4157842 has 16 divisors (see below), whose sum is σ = 6874560. Its totient is φ = 1873872.

The previous prime is 4157837. The next prime is 4157863. The reversal of 4157842 is 2487514.

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 in 7 ways as a sum of consecutive naturals, for example, 742 + ... + 2977.

It is an arithmetic number, because the mean of its divisors is an integer number (429660).

Almost surely, 2^4157842 is an apocalyptic number.

4157842 is a deficient number, since it is larger than the sum of its proper divisors (2716718).

4157842 is a wasteful number, since it uses less digits than its factorization.

4157842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3777.

The product of its digits is 8960, while the sum is 31.

The square root of 4157842 is about 2039.0787135371. The cubic root of 4157842 is about 160.8012155135.

The spelling of 4157842 in words is "four million, one hundred fifty-seven thousand, eight hundred forty-two".