1216410441 has 8 divisors (see below), whose sum is σ = 1625268480. Its totient is φ = 809246352.

The previous prime is 1216410439. The next prime is 1216410449. The reversal of 1216410441 is 1440146121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1216410441 - 2¹ = 1216410439 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1216410449) 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, 421810 + ... + 424683.

It is an arithmetic number, because the mean of its divisors is an integer number (203158560).

Almost surely, 2^1216410441 is an apocalyptic number.

It is an amenable number.

1216410441 is a deficient number, since it is larger than the sum of its proper divisors (408858039).

1216410441 is an equidigital number, since it uses as much as digits as its factorization.

1216410441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846975.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 1216410441 is about 34877.0761532557. The cubic root of 1216410441 is about 1067.4807360501.

Adding to 1216410441 its reverse (1440146121), we get a palindrome (2656556562).

The spelling of 1216410441 in words is "one billion, two hundred sixteen million, four hundred ten thousand, four hundred forty-one".