2271329644 has 12 divisors (see below), whose sum is σ = 4071774168. Its totient is φ = 1107965600.

The previous prime is 2271329623. The next prime is 2271329651. The reversal of 2271329644 is 4469231722.

It is a junction number, because it is equal to n+sod(n) for n = 2271329597 and 2271329606.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6924622 + ... + 6924949.

It is an arithmetic number, because the mean of its divisors is an integer number (339314514).

Almost surely, 2^2271329644 is an apocalyptic number.

It is an amenable number.

2271329644 is a deficient number, since it is larger than the sum of its proper divisors (1800444524).

2271329644 is a wasteful number, since it uses less digits than its factorization.

2271329644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13849616 (or 13849614 counting only the distinct ones).

The product of its digits is 145152, while the sum is 40.

The square root of 2271329644 is about 47658.4687542519. The cubic root of 2271329644 is about 1314.4983834740.

The spelling of 2271329644 in words is "two billion, two hundred seventy-one million, three hundred twenty-nine thousand, six hundred forty-four".