288216041 has 4 divisors (see below), whose sum is σ = 288427332. Its totient is φ = 288004752.

The previous prime is 288216037. The next prime is 288216043. The reversal of 288216041 is 140612882.

288216041 = 12004² + 12005².

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 144120025 + 144096016 = 12005^2 + 12004^2 .

It is a cyclic number.

It is not a de Polignac number, because 288216041 - 2² = 288216037 is a prime.

It is a deceptive number, since it divides R_288216040.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 288215989 and 288216007.

It is not an unprimeable number, because it can be changed into a prime (288216043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103586 + ... + 106331.

It is an arithmetic number, because the mean of its divisors is an integer number (72106833).

Almost surely, 2^288216041 is an apocalyptic number.

288216041 is the 12005-th centered square number.

It is an amenable number.

288216041 is a deficient number, since it is larger than the sum of its proper divisors (211291).

288216041 is a wasteful number, since it uses less digits than its factorization.

288216041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211290.

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 288216041 is about 16976.9267242337. The cubic root of 288216041 is about 660.5505362065.

The spelling of 288216041 in words is "two hundred eighty-eight million, two hundred sixteen thousand, forty-one".