1296320 has 28 divisors (see below), whose sum is σ = 3087624. Its totient is φ = 518400.

The previous prime is 1296319. The next prime is 1296331. The reversal of 1296320 is 236921.

It is a congruent number.

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, 1706 + ... + 2345.

2^1296320 is an apocalyptic number.

1296320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1296320 is an abundant number, since it is smaller than the sum of its proper divisors (1791304).

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

1296320 is an equidigital number, since it uses as much as digits as its factorization.

1296320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4068 (or 4058 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 1296320 is about 1138.5604946598. The cubic root of 1296320 is about 109.0362082665.

The spelling of 1296320 in words is "one million, two hundred ninety-six thousand, three hundred twenty".