1939842 has 16 divisors (see below), whose sum is σ = 4310880. Its totient is φ = 646596.

The previous prime is 1939841. The next prime is 1939867. The reversal of 1939842 is 2489391.

It is a junction number, because it is equal to n+sod(n) for n = 1939797 and 1939806.

It is not an unprimeable number, because it can be changed into a prime (1939841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17908 + ... + 18015.

It is an arithmetic number, because the mean of its divisors is an integer number (269430).

2^1939842 is an apocalyptic number.

1939842 is an abundant number, since it is smaller than the sum of its proper divisors (2371038).

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

1939842 is a wasteful number, since it uses less digits than its factorization.

1939842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35934 (or 35928 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 1939842 is about 1392.7821078690. The cubic root of 1939842 is about 124.7159845037.

The spelling of 1939842 in words is "one million, nine hundred thirty-nine thousand, eight hundred forty-two".