1307856 has 40 divisors (see below), whose sum is σ = 3687264. Its totient is φ = 396160.

The previous prime is 1307833. The next prime is 1307863. The reversal of 1307856 is 6587031.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 711 + ... + 1766.

2^1307856 is an apocalyptic number.

1307856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1307856 is an abundant number, since it is smaller than the sum of its proper divisors (2379408).

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

1307856 is a wasteful number, since it uses less digits than its factorization.

1307856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2499 (or 2493 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 1307856 is about 1143.6153199394. The cubic root of 1307856 is about 109.3586926436.

The spelling of 1307856 in words is "one million, three hundred seven thousand, eight hundred fifty-six".