1399386 has 8 divisors (see below), whose sum is σ = 2798784. Its totient is φ = 466460.

The previous prime is 1399381. The next prime is 1399393. The reversal of 1399386 is 6839931.

It is a sphenic number, since it is the product of 3 distinct primes.

1399386 is an admirable number.

It is a zygodrome in base 4.

It is not an unprimeable number, because it can be changed into a prime (1399381) 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 in 3 ways as a sum of consecutive naturals, for example, 116610 + ... + 116621.

It is an arithmetic number, because the mean of its divisors is an integer number (349848).

2^1399386 is an apocalyptic number.

1399386 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1399386 is a wasteful number, since it uses less digits than its factorization.

1399386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233236.

The product of its digits is 34992, while the sum is 39.

The square root of 1399386 is about 1182.9564658093. The cubic root of 1399386 is about 111.8525376498.

It can be divided in two parts, 13 and 99386, that added together give a palindrome (99399).

The spelling of 1399386 in words is "one million, three hundred ninety-nine thousand, three hundred eighty-six".