1394018 has 4 divisors (see below), whose sum is σ = 2091030. Its totient is φ = 697008.

The previous prime is 1394009. The next prime is 1394021. The reversal of 1394018 is 8104931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8104931 = 523 ⋅15497.

It can be written as a sum of positive squares in only one way, i.e., 908209 + 485809 = 953^2 + 697^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 348503 + ... + 348506.

2^1394018 is an apocalyptic number.

1394018 is a deficient number, since it is larger than the sum of its proper divisors (697012).

1394018 is an equidigital number, since it uses as much as digits as its factorization.

1394018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697011.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 1394018 is about 1180.6853941673. The cubic root of 1394018 is about 111.7093334639.

Adding to 1394018 its reverse (8104931), we get a palindrome (9498949).

The spelling of 1394018 in words is "one million, three hundred ninety-four thousand, eighteen".