1003942 has 4 divisors (see below), whose sum is σ = 1505916. Its totient is φ = 501970.

The previous prime is 1003931. The next prime is 1003943. The reversal of 1003942 is 2493001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2493001 = 7 ⋅356143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1003943) 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, 250984 + ... + 250987.

It is an arithmetic number, because the mean of its divisors is an integer number (376479).

2^1003942 is an apocalyptic number.

1003942 is a deficient number, since it is larger than the sum of its proper divisors (501974).

1003942 is an equidigital number, since it uses as much as digits as its factorization.

1003942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501973.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1003942 is about 1001.9690613986. The cubic root of 1003942 is about 100.1312277175.

Adding to 1003942 its reverse (2493001), we get a palindrome (3496943).

The spelling of 1003942 in words is "one million, three thousand, nine hundred forty-two".