1399485 has 16 divisors (see below), whose sum is σ = 2269440. Its totient is φ = 736320.

The previous prime is 1399477. The next prime is 1399493. The reversal of 1399485 is 5849931.

It is an interprime number because it is at equal distance from previous prime (1399477) and next prime (1399493).

It is not a de Polignac number, because 1399485 - 2³ = 1399477 is a prime.

1399485 is a lucky number.

It is a plaindrome in base 16.

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 15 ways as a sum of consecutive naturals, for example, 595 + ... + 1775.

It is an arithmetic number, because the mean of its divisors is an integer number (141840).

2^1399485 is an apocalyptic number.

1399485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1399485 is a deficient number, since it is larger than the sum of its proper divisors (869955).

1399485 is a wasteful number, since it uses less digits than its factorization.

1399485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1268.

The product of its digits is 38880, while the sum is 39.

The square root of 1399485 is about 1182.9983093817. The cubic root of 1399485 is about 111.8551752685.

The spelling of 1399485 in words is "one million, three hundred ninety-nine thousand, four hundred eighty-five".