1039942 has 4 divisors (see below), whose sum is σ = 1559916. Its totient is φ = 519970.

The previous prime is 1039931. The next prime is 1039943. The reversal of 1039942 is 2499301.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1039942.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1039943) 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 as a sum of consecutive naturals, namely, 259984 + ... + 259987.

It is an arithmetic number, because the mean of its divisors is an integer number (389979).

2^1039942 is an apocalyptic number.

1039942 is a deficient number, since it is larger than the sum of its proper divisors (519974).

1039942 is an equidigital number, since it uses as much as digits as its factorization.

1039942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519973.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 1039942 is about 1019.7754654825. The cubic root of 1039942 is about 101.3140569097.

The spelling of 1039942 in words is "one million, thirty-nine thousand, nine hundred forty-two".