4223661272 has 16 divisors (see below), whose sum is σ = 7956900600. Its totient is φ = 2101821120.

The previous prime is 4223661241. The next prime is 4223661287. The reversal of 4223661272 is 2721663224.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1249397 + ... + 1252772.

Almost surely, 2^4223661272 is an apocalyptic number.

It is an amenable number.

4223661272 is a deficient number, since it is larger than the sum of its proper divisors (3733239328).

4223661272 is a wasteful number, since it uses less digits than its factorization.

4223661272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2502386 (or 2502382 counting only the distinct ones).

The product of its digits is 48384, while the sum is 35.

The square root of 4223661272 is about 64989.7012764330. The cubic root of 4223661272 is about 1616.4527974616.

The spelling of 4223661272 in words is "four billion, two hundred twenty-three million, six hundred sixty-one thousand, two hundred seventy-two".