1220759228 has 24 divisors (see below), whose sum is σ = 2306041920. Its totient is φ = 562109760.

The previous prime is 1220759213. The next prime is 1220759317. The reversal of 1220759228 is 8229570221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1220759191 and 1220759200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4823 + ... + 49646.

It is an arithmetic number, because the mean of its divisors is an integer number (96085080).

Almost surely, 2^1220759228 is an apocalyptic number.

It is an amenable number.

1220759228 is a deficient number, since it is larger than the sum of its proper divisors (1085282692).

1220759228 is a wasteful number, since it uses less digits than its factorization.

1220759228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54917 (or 54915 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 1220759228 is about 34939.3650199886. The cubic root of 1220759228 is about 1068.7513392913.

The spelling of 1220759228 in words is "one billion, two hundred twenty million, seven hundred fifty-nine thousand, two hundred twenty-eight".