2228540285 has 16 divisors (see below), whose sum is σ = 2832733296. Its totient is φ = 1677262848.

The previous prime is 2228540263. The next prime is 2228540287. The reversal of 2228540285 is 5820458222.

It can be written as a sum of positive squares in 8 ways, for example, as 21325924 + 2207214361 = 4618^2 + 46981^2 .

It is a cyclic number.

It is not a de Polignac number, because 2228540285 - 2⁸ = 2228540029 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2228540287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 301757 + ... + 309053.

It is an arithmetic number, because the mean of its divisors is an integer number (177045831).

Almost surely, 2^2228540285 is an apocalyptic number.

It is an amenable number.

2228540285 is a deficient number, since it is larger than the sum of its proper divisors (604193011).

2228540285 is a wasteful number, since it uses less digits than its factorization.

2228540285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10912.

The product of its (nonzero) digits is 102400, while the sum is 38.

The square root of 2228540285 is about 47207.4176904435. The cubic root of 2228540285 is about 1306.1914291634.

The spelling of 2228540285 in words is "two billion, two hundred twenty-eight million, five hundred forty thousand, two hundred eighty-five".