2223964648 has 8 divisors (see below), whose sum is σ = 4169933730. Its totient is φ = 1111982320.

The previous prime is 2223964643. The next prime is 2223964697. The reversal of 2223964648 is 8464693222.

It can be written as a sum of positive squares in only one way, i.e., 1762488324 + 461476324 = 41982^2 + 21482^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 2223964598 and 2223964607.

It is not an unprimeable number, because it can be changed into a prime (2223964643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138997783 + ... + 138997798.

Almost surely, 2^2223964648 is an apocalyptic number.

It is an amenable number.

2223964648 is a deficient number, since it is larger than the sum of its proper divisors (1945969082).

2223964648 is a wasteful number, since it uses less digits than its factorization.

2223964648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277995587 (or 277995583 counting only the distinct ones).

The product of its digits is 995328, while the sum is 46.

The square root of 2223964648 is about 47158.9296740289. The cubic root of 2223964648 is about 1305.2968596002.

The spelling of 2223964648 in words is "two billion, two hundred twenty-three million, nine hundred sixty-four thousand, six hundred forty-eight".