1319872 has 28 divisors (see below), whose sum is σ = 2688336. Its totient is φ = 642560.

The previous prime is 1319869. The next prime is 1319893. The reversal of 1319872 is 2789131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2373 + ... + 2875.

It is an arithmetic number, because the mean of its divisors is an integer number (96012).

2^1319872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1319872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1344168).

1319872 is an abundant number, since it is smaller than the sum of its proper divisors (1368464).

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

1319872 is an equidigital number, since it uses as much as digits as its factorization.

1319872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556 (or 546 counting only the distinct ones).

The product of its digits is 3024, while the sum is 31.

The square root of 1319872 is about 1148.8568231072. The cubic root of 1319872 is about 109.6925852005.

The spelling of 1319872 in words is "one million, three hundred nineteen thousand, eight hundred seventy-two".