288620338 has 8 divisors (see below), whose sum is σ = 438410880. Its totient is φ = 142483380.

The previous prime is 288620309. The next prime is 288620357. The reversal of 288620338 is 833026882.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 288620338.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 913198 + ... + 913513.

It is an arithmetic number, because the mean of its divisors is an integer number (54801360).

Almost surely, 2^288620338 is an apocalyptic number.

288620338 is a deficient number, since it is larger than the sum of its proper divisors (149790542).

288620338 is a wasteful number, since it uses less digits than its factorization.

288620338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1826792.

The product of its (nonzero) digits is 110592, while the sum is 40.

The square root of 288620338 is about 16988.8298007838. The cubic root of 288620338 is about 660.8592558088.

The spelling of 288620338 in words is "two hundred eighty-eight million, six hundred twenty thousand, three hundred thirty-eight".