3842157 has 16 divisors (see below), whose sum is σ = 5629248. Its totient is φ = 2311680.

The previous prime is 3842149. The next prime is 3842177. The reversal of 3842157 is 7512483.

3842157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3842157 - 2³ = 3842149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3842147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5373 + ... + 6045.

It is an arithmetic number, because the mean of its divisors is an integer number (351828).

Almost surely, 2^3842157 is an apocalyptic number.

It is an amenable number.

3842157 is a deficient number, since it is larger than the sum of its proper divisors (1787091).

3842157 is a wasteful number, since it uses less digits than its factorization.

3842157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 860.

The product of its digits is 6720, while the sum is 30.

The square root of 3842157 is about 1960.1420866866. The cubic root of 3842157 is about 156.6240208859.

It can be divided in two parts, 38 and 42157, that added together give a triangular number (42195 = T₂₉₀).

The spelling of 3842157 in words is "three million, eight hundred forty-two thousand, one hundred fifty-seven".