3872042 has 4 divisors (see below), whose sum is σ = 5808066. Its totient is φ = 1936020.

The previous prime is 3872041. The next prime is 3872047. The reversal of 3872042 is 2402783.

3872042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2402783 = 163 ⋅14741.

It can be written as a sum of positive squares in only one way, i.e., 3798601 + 73441 = 1949^2 + 271^2 .

It is a d-powerful number, because it can be written as 3¹³ + 8⁵ + 7³ + 2¹⁷ + 0 + 4⁷ + 2²¹ .

It is not an unprimeable number, because it can be changed into a prime (3872041) 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 as a sum of consecutive naturals, namely, 968009 + ... + 968012.

Almost surely, 2^3872042 is an apocalyptic number.

3872042 is a deficient number, since it is larger than the sum of its proper divisors (1936024).

3872042 is a wasteful number, since it uses less digits than its factorization.

3872042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1936023.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 3872042 is about 1967.7504923135. The cubic root of 3872042 is about 157.0290559770.

The spelling of 3872042 in words is "three million, eight hundred seventy-two thousand, forty-two".