1399486 has 12 divisors (see below), whose sum is σ = 2307816. Its totient is φ = 636020.

The previous prime is 1399477. The next prime is 1399493. The reversal of 1399486 is 6849931.

It is a super-2 number, since 2×1399486² = 3917122128392, which contains 22 as substring.

It is a plaindrome in base 16.

It is a nialpdrome in base 11.

It is a congruent number.

It is an unprimeable number.

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 in 5 ways as a sum of consecutive naturals, for example, 2650 + ... + 3133.

It is an arithmetic number, because the mean of its divisors is an integer number (192318).

2^1399486 is an apocalyptic number.

1399486 is a deficient number, since it is larger than the sum of its proper divisors (908330).

1399486 is a wasteful number, since it uses less digits than its factorization.

1399486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5807 (or 5796 counting only the distinct ones).

The product of its digits is 46656, while the sum is 40.

The square root of 1399486 is about 1182.9987320365. The cubic root of 1399486 is about 111.8552019105.

It can be divided in two parts, 13 and 99486, that added together give a palindrome (99499).

The spelling of 1399486 in words is "one million, three hundred ninety-nine thousand, four hundred eighty-six".