1216414326 has 16 divisors (see below), whose sum is σ = 2433254400. Its totient is φ = 405400488.

The previous prime is 1216414319. The next prime is 1216414327. The reversal of 1216414326 is 6234146121.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1216414293 and 1216414302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1216414327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28795 + ... + 57113.

It is an arithmetic number, because the mean of its divisors is an integer number (152078400).

Almost surely, 2^1216414326 is an apocalyptic number.

1216414326 is an abundant number, since it is smaller than the sum of its proper divisors (1216840074).

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

1216414326 is a wasteful number, since it uses less digits than its factorization.

1216414326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35483.

The product of its digits is 6912, while the sum is 30.

The square root of 1216414326 is about 34877.1318488204. The cubic root of 1216414326 is about 1067.4818724972.

The spelling of 1216414326 in words is "one billion, two hundred sixteen million, four hundred fourteen thousand, three hundred twenty-six".