880721228 has 12 divisors (see below), whose sum is σ = 1543865400. Its totient is φ = 439616832.

The previous prime is 880721207. The next prime is 880721239. The reversal of 880721228 is 822127088.

It is a junction number, because it is equal to n+sod(n) for n = 880721191 and 880721200.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183278 + ... + 188021.

It is an arithmetic number, because the mean of its divisors is an integer number (128655450).

Almost surely, 2^880721228 is an apocalyptic number.

It is an amenable number.

880721228 is a deficient number, since it is larger than the sum of its proper divisors (663144172).

880721228 is a wasteful number, since it uses less digits than its factorization.

880721228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371896 (or 371894 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 38.

The square root of 880721228 is about 29676.9477541071. The cubic root of 880721228 is about 958.5456958457.

The spelling of 880721228 in words is "eight hundred eighty million, seven hundred twenty-one thousand, two hundred twenty-eight".