288448642 has 4 divisors (see below), whose sum is σ = 432672966. Its totient is φ = 144224320.

The previous prime is 288448637. The next prime is 288448649. The reversal of 288448642 is 246844882.

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

It can be written as a sum of positive squares in only one way, i.e., 164326761 + 124121881 = 12819^2 + 11141^2 .

It is a junction number, because it is equal to n+sod(n) for n = 288448592 and 288448601.

It is not an unprimeable number, because it can be changed into a prime (288448649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72112159 + ... + 72112162.

Almost surely, 2^288448642 is an apocalyptic number.

288448642 is a deficient number, since it is larger than the sum of its proper divisors (144224324).

288448642 is a wasteful number, since it uses less digits than its factorization.

288448642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144224323.

The product of its digits is 786432, while the sum is 46.

The square root of 288448642 is about 16983.7758463776. The cubic root of 288448642 is about 660.7281846596.

The spelling of 288448642 in words is "two hundred eighty-eight million, four hundred forty-eight thousand, six hundred forty-two".