1278592 has 32 divisors (see below), whose sum is σ = 2913120. Its totient is φ = 547584.

The previous prime is 1278583. The next prime is 1278601. The reversal of 1278592 is 2958721.

It is an interprime number because it is at equal distance from previous prime (1278583) and next prime (1278601).

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183 + ... + 1609.

It is an arithmetic number, because the mean of its divisors is an integer number (91035).

2^1278592 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 1278592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1456560).

1278592 is an abundant number, since it is smaller than the sum of its proper divisors (1634528).

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

1278592 is an equidigital number, since it uses as much as digits as its factorization.

1278592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1448 (or 1436 counting only the distinct ones).

The product of its digits is 10080, while the sum is 34.

The square root of 1278592 is about 1130.7484247170. The cubic root of 1278592 is about 108.5368785990.

The spelling of 1278592 in words is "one million, two hundred seventy-eight thousand, five hundred ninety-two".