28224672004 has 27 divisors (see below), whose sum is σ = 49789699687. Its totient is φ = 13999942664.

The previous prime is 28224671977. The next prime is 28224672013. The reversal of 28224672004 is 40027642282.

The square root of 28224672004 is 168002.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 56112417 + ... + 56112919.

Almost surely, 2^28224672004 is an apocalyptic number.

28224672004 is the 168002-nd square number.

It is an amenable number.

28224672004 is a deficient number, since it is larger than the sum of its proper divisors (21565027683).

28224672004 is an frugal number, since it uses more digits than its factorization.

28224672004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1344 (or 672 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 37.

The spelling of 28224672004 in words is "twenty-eight billion, two hundred twenty-four million, six hundred seventy-two thousand, four".