288405406 has 8 divisors (see below), whose sum is σ = 447525720. Its totient is φ = 139230168.

The previous prime is 288405373. The next prime is 288405409. The reversal of 288405406 is 604504882.

288405406 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (288405409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2486196 + ... + 2486311.

It is an arithmetic number, because the mean of its divisors is an integer number (55940715).

Almost surely, 2^288405406 is an apocalyptic number.

288405406 is a deficient number, since it is larger than the sum of its proper divisors (159120314).

288405406 is a wasteful number, since it uses less digits than its factorization.

288405406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4972538.

The product of its (nonzero) digits is 61440, while the sum is 37.

The square root of 288405406 is about 16982.5029368465. The cubic root of 288405406 is about 660.6951704968.

The spelling of 288405406 in words is "two hundred eighty-eight million, four hundred five thousand, four hundred six".