288630243 has 128 divisors (see below), whose sum is σ = 530841600. Its totient is φ = 153014400.

The previous prime is 288630241. The next prime is 288630269. The reversal of 288630243 is 342036882.

It is not a de Polignac number, because 288630243 - 2¹ = 288630241 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 288630198 and 288630207.

It is not an unprimeable number, because it can be changed into a prime (288630241) by changing a digit.

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 in 127 ways as a sum of consecutive naturals, for example, 6141046 + ... + 6141092.

It is an arithmetic number, because the mean of its divisors is an integer number (4147200).

Almost surely, 2^288630243 is an apocalyptic number.

288630243 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

288630243 is a deficient number, since it is larger than the sum of its proper divisors (242211357).

288630243 is a wasteful number, since it uses less digits than its factorization.

288630243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150 (or 144 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The square root of 288630243 is about 16989.1213133581. The cubic root of 288630243 is about 660.8668156087.

The spelling of 288630243 in words is "two hundred eighty-eight million, six hundred thirty thousand, two hundred forty-three".