1396042 has 4 divisors (see below), whose sum is σ = 2094066. Its totient is φ = 698020.

The previous prime is 1396037. The next prime is 1396049. The reversal of 1396042 is 2406931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2406931 = 101 ⋅23831.

It can be written as a sum of positive squares in only one way, i.e., 1147041 + 249001 = 1071^2 + 499^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1395998 and 1396016.

It is not an unprimeable number, because it can be changed into a prime (1396049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349009 + ... + 349012.

2^1396042 is an apocalyptic number.

1396042 is a deficient number, since it is larger than the sum of its proper divisors (698024).

1396042 is an equidigital number, since it uses as much as digits as its factorization.

1396042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698023.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 1396042 is about 1181.5422125341. The cubic root of 1396042 is about 111.7633715880.

The spelling of 1396042 in words is "one million, three hundred ninety-six thousand, forty-two".