2243643215 has 64 divisors (see below), whose sum is σ = 3247395840. Its totient is φ = 1468938240.

The previous prime is 2243643161. The next prime is 2243643217. The reversal of 2243643215 is 5123463422.

It is not a de Polignac number, because 2243643215 - 2¹² = 2243639119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2243643217) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6657527 + ... + 6657863.

It is an arithmetic number, because the mean of its divisors is an integer number (50740560).

Almost surely, 2^2243643215 is an apocalyptic number.

2243643215 is a deficient number, since it is larger than the sum of its proper divisors (1003752625).

2243643215 is a wasteful number, since it uses less digits than its factorization.

2243643215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672.

The product of its digits is 34560, while the sum is 32.

The square root of 2243643215 is about 47367.1111109808. Note that the first 5 decimals coincide. The cubic root of 2243643215 is about 1309.1354968628.

The spelling of 2243643215 in words is "two billion, two hundred forty-three million, six hundred forty-three thousand, two hundred fifteen".