288472249 has 4 divisors (see below), whose sum is σ = 310662436. Its totient is φ = 266282064.

The previous prime is 288472207. The next prime is 288472253. The reversal of 288472249 is 942274882.

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 166590649 + 121881600 = 12907^2 + 11040^2 .

It is a cyclic number.

It is not a de Polignac number, because 288472249 - 2¹⁷ = 288341177 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 288472199 and 288472208.

It is not an unprimeable number, because it can be changed into a prime (288472259) 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, 11095074 + ... + 11095099.

It is an arithmetic number, because the mean of its divisors is an integer number (77665609).

Almost surely, 2^288472249 is an apocalyptic number.

It is an amenable number.

288472249 is a deficient number, since it is larger than the sum of its proper divisors (22190187).

288472249 is a wasteful number, since it uses less digits than its factorization.

288472249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22190186.

The product of its digits is 516096, while the sum is 46.

The square root of 288472249 is about 16984.4708189569. The cubic root of 288472249 is about 660.7462091100.

The spelling of 288472249 in words is "two hundred eighty-eight million, four hundred seventy-two thousand, two hundred forty-nine".