2215443641 has 8 divisors (see below), whose sum is σ = 2251278720. Its totient is φ = 2179690128.

The previous prime is 2215443617. The next prime is 2215443701. The reversal of 2215443641 is 1463445122.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2215443641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2215443598 and 2215443607.

It is not an unprimeable number, because it can be changed into a prime (2215443341) 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, 35600 + ... + 75486.

It is an arithmetic number, because the mean of its divisors is an integer number (281409840).

Almost surely, 2^2215443641 is an apocalyptic number.

It is an amenable number.

2215443641 is a deficient number, since it is larger than the sum of its proper divisors (35835079).

2215443641 is an equidigital number, since it uses as much as digits as its factorization.

2215443641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40783.

The product of its digits is 23040, while the sum is 32.

The square root of 2215443641 is about 47068.4994555807. The cubic root of 2215443641 is about 1303.6276665480.

Adding to 2215443641 its reverse (1463445122), we get a palindrome (3678888763).

The spelling of 2215443641 in words is "two billion, two hundred fifteen million, four hundred forty-three thousand, six hundred forty-one".