1307872 has 24 divisors (see below), whose sum is σ = 2688336. Its totient is φ = 625152.

The previous prime is 1307863. The next prime is 1307893. The reversal of 1307872 is 2787031.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1307872.

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 3 ways as a sum of consecutive naturals, for example, 153 + ... + 1624.

It is an arithmetic number, because the mean of its divisors is an integer number (112014).

2^1307872 is an apocalyptic number.

It is an amenable number.

1307872 is an abundant number, since it is smaller than the sum of its proper divisors (1380464).

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

1307872 is a wasteful number, since it uses less digits than its factorization.

1307872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1810 (or 1802 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 1307872 is about 1143.6223152772. The cubic root of 1307872 is about 109.3591385979.

The spelling of 1307872 in words is "one million, three hundred seven thousand, eight hundred seventy-two".