1939942 has 8 divisors (see below), whose sum is σ = 2923416. Its totient is φ = 965472.

The previous prime is 1939939. The next prime is 1939961. The reversal of 1939942 is 2499391.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1683 + ... + 2590.

It is an arithmetic number, because the mean of its divisors is an integer number (365427).

2^1939942 is an apocalyptic number.

1939942 is a deficient number, since it is larger than the sum of its proper divisors (983474).

1939942 is a wasteful number, since it uses less digits than its factorization.

1939942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4502.

The product of its digits is 17496, while the sum is 37.

The square root of 1939942 is about 1392.8180067762. The cubic root of 1939942 is about 124.7181275277.

The spelling of 1939942 in words is "one million, nine hundred thirty-nine thousand, nine hundred forty-two".