1672228856 has 16 divisors (see below), whose sum is σ = 3243547800. Its totient is φ = 807282784.

The previous prime is 1672228853. The next prime is 1672228861. The reversal of 1672228856 is 6588222761.

It is a self number, because there is not a number n which added to its sum of digits gives 1672228856.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1672228853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3603710 + ... + 3604173.

Almost surely, 2^1672228856 is an apocalyptic number.

It is an amenable number.

1672228856 is a deficient number, since it is larger than the sum of its proper divisors (1571318944).

1672228856 is a wasteful number, since it uses less digits than its factorization.

1672228856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7207918 (or 7207914 counting only the distinct ones).

The product of its digits is 645120, while the sum is 47.

The square root of 1672228856 is about 40892.8949329832. The cubic root of 1672228856 is about 1186.9485779044.

The spelling of 1672228856 in words is "one billion, six hundred seventy-two million, two hundred twenty-eight thousand, eight hundred fifty-six".