288497242 has 32 divisors (see below), whose sum is σ = 501007680. Its totient is φ = 123137280.

The previous prime is 288497221. The next prime is 288497281. The reversal of 288497242 is 242794882.

It is a happy number.

288497242 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 288497192 and 288497201.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 282609 + ... + 283627.

It is an arithmetic number, because the mean of its divisors is an integer number (15656490).

Almost surely, 2^288497242 is an apocalyptic number.

288497242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

288497242 is a deficient number, since it is larger than the sum of its proper divisors (212510438).

288497242 is a wasteful number, since it uses less digits than its factorization.

288497242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1806.

The product of its digits is 516096, while the sum is 46.

The square root of 288497242 is about 16985.2065633598. The cubic root of 288497242 is about 660.7652907296.

The spelling of 288497242 in words is "two hundred eighty-eight million, four hundred ninety-seven thousand, two hundred forty-two".