1296216 has 64 divisors (see below), whose sum is σ = 3823200. Its totient is φ = 405504.

The previous prime is 1296209. The next prime is 1296227. The reversal of 1296216 is 6126921.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 1296216.

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 15 ways as a sum of consecutive naturals, for example, 3496 + ... + 3848.

2^1296216 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 1296216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1911600).

1296216 is an abundant number, since it is smaller than the sum of its proper divisors (2526984).

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

1296216 is a wasteful number, since it uses less digits than its factorization.

1296216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385 (or 375 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 1296216 is about 1138.5148220379. The cubic root of 1296216 is about 109.0332923021.

It can be divided in two parts, 1296 and 216, that multiplied together give a 7-th power (279936 = 6⁷).

The spelling of 1296216 in words is "one million, two hundred ninety-six thousand, two hundred sixteen".