3889842 has 16 divisors (see below), whose sum is σ = 8487072. Its totient is φ = 1178720.

The previous prime is 3889817. The next prime is 3889843. The reversal of 3889842 is 2489883.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 3889794 and 3889803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3889843) by changing a digit.

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, 29403 + ... + 29534.

It is an arithmetic number, because the mean of its divisors is an integer number (530442).

Almost surely, 2^3889842 is an apocalyptic number.

3889842 is an abundant number, since it is smaller than the sum of its proper divisors (4597230).

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

3889842 is a wasteful number, since it uses less digits than its factorization.

3889842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58953.

The product of its digits is 110592, while the sum is 42.

The square root of 3889842 is about 1972.2682373349. The cubic root of 3889842 is about 157.2693120656.

The spelling of 3889842 in words is "three million, eight hundred eighty-nine thousand, eight hundred forty-two".