2228947856 has 10 divisors (see below), whose sum is σ = 4318586502. Its totient is φ = 1114473920.

The previous prime is 2228947841. The next prime is 2228947879. The reversal of 2228947856 is 6587498222.

It can be written as a sum of positive squares in only one way, i.e., 2191737856 + 37210000 = 46816^2 + 6100^2 .

It is a super-3 number, since 3×2228947856³ (a number of 29 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2228947798 and 2228947807.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69654605 + ... + 69654636.

Almost surely, 2^2228947856 is an apocalyptic number.

It is an amenable number.

2228947856 is a deficient number, since it is larger than the sum of its proper divisors (2089638646).

2228947856 is a wasteful number, since it uses less digits than its factorization.

2228947856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139309249 (or 139309243 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 53.

The square root of 2228947856 is about 47211.7343040901. The cubic root of 2228947856 is about 1306.2710527776.

The spelling of 2228947856 in words is "two billion, two hundred twenty-eight million, nine hundred forty-seven thousand, eight hundred fifty-six".