288023738 has 8 divisors (see below), whose sum is σ = 432343488. Its totient is φ = 143909244.

The previous prime is 288023719. The next prime is 288023753. The reversal of 288023738 is 837320882.

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

It is a super-4 number, since 4×288023738⁴ (a number of 35 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 288023695 and 288023704.

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, 47756 + ... + 53447.

It is an arithmetic number, because the mean of its divisors is an integer number (54042936).

Almost surely, 2^288023738 is an apocalyptic number.

288023738 is a deficient number, since it is larger than the sum of its proper divisors (144319750).

288023738 is a wasteful number, since it uses less digits than its factorization.

288023738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102628.

The product of its (nonzero) digits is 129024, while the sum is 41.

The square root of 288023738 is about 16971.2621215984. The cubic root of 288023738 is about 660.4035930650.

The spelling of 288023738 in words is "two hundred eighty-eight million, twenty-three thousand, seven hundred thirty-eight".