1285486 has 8 divisors (see below), whose sum is σ = 1934280. Its totient is φ = 640728.

The previous prime is 1285481. The next prime is 1285507. The reversal of 1285486 is 6845821.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1285481) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 16 + ... + 1603.

It is an arithmetic number, because the mean of its divisors is an integer number (241785).

2^1285486 is an apocalyptic number.

1285486 is a deficient number, since it is larger than the sum of its proper divisors (648794).

1285486 is a wasteful number, since it uses less digits than its factorization.

1285486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2018.

The product of its digits is 15360, while the sum is 34.

The square root of 1285486 is about 1133.7927500209. The cubic root of 1285486 is about 108.7316012385.

It can be divided in two parts, 1285 and 486, that added together give a palindrome (1771).

The spelling of 1285486 in words is "one million, two hundred eighty-five thousand, four hundred eighty-six".