288493906 has 8 divisors (see below), whose sum is σ = 433041840. Its totient is φ = 144146628.

The previous prime is 288493889. The next prime is 288493939. The reversal of 288493906 is 609394882.

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 288493906.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46516 + ... + 52351.

It is an arithmetic number, because the mean of its divisors is an integer number (54130230).

Almost surely, 2^288493906 is an apocalyptic number.

288493906 is a deficient number, since it is larger than the sum of its proper divisors (144547934).

288493906 is a wasteful number, since it uses less digits than its factorization.

288493906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100328.

The product of its (nonzero) digits is 746496, while the sum is 49.

The square root of 288493906 is about 16985.1083599723. The cubic root of 288493906 is about 660.7627438288.

The spelling of 288493906 in words is "two hundred eighty-eight million, four hundred ninety-three thousand, nine hundred six".