1339942 has 4 divisors (see below), whose sum is σ = 2009916. Its totient is φ = 669970.

The previous prime is 1339931. The next prime is 1339951. The reversal of 1339942 is 2499331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2499331 = 173 ⋅14447.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 334984 + ... + 334987.

It is an arithmetic number, because the mean of its divisors is an integer number (502479).

2^1339942 is an apocalyptic number.

1339942 is a deficient number, since it is larger than the sum of its proper divisors (669974).

1339942 is an equidigital number, since it uses as much as digits as its factorization.

1339942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 669973.

The product of its digits is 5832, while the sum is 31.

The square root of 1339942 is about 1157.5586378236. The cubic root of 1339942 is about 110.2457864882.

The spelling of 1339942 in words is "one million, three hundred thirty-nine thousand, nine hundred forty-two".