3861042 has 8 divisors (see below), whose sum is σ = 7722096. Its totient is φ = 1287012.

The previous prime is 3861041. The next prime is 3861059. The reversal of 3861042 is 2401683.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

3861042 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (3861041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 321748 + ... + 321759.

It is an arithmetic number, because the mean of its divisors is an integer number (965262).

Almost surely, 2^3861042 is an apocalyptic number.

3861042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3861042 is a wasteful number, since it uses less digits than its factorization.

3861042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643512.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 3861042 is about 1964.9534345628. The cubic root of 3861042 is about 156.8802147968.

The spelling of 3861042 in words is "three million, eight hundred sixty-one thousand, forty-two".