288420862 has 4 divisors (see below), whose sum is σ = 432631296. Its totient is φ = 144210430.

The previous prime is 288420829. The next prime is 288420901. The reversal of 288420862 is 268024882.

It is a semiprime because it is the product of two primes.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 72105214 + ... + 72105217.

It is an arithmetic number, because the mean of its divisors is an integer number (108157824).

Almost surely, 2^288420862 is an apocalyptic number.

288420862 is a deficient number, since it is larger than the sum of its proper divisors (144210434).

288420862 is a wasteful number, since it uses less digits than its factorization.

288420862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144210433.

The product of its (nonzero) digits is 98304, while the sum is 40.

The square root of 288420862 is about 16982.9579873472. The cubic root of 288420862 is about 660.7069727746.

The spelling of 288420862 in words is "two hundred eighty-eight million, four hundred twenty thousand, eight hundred sixty-two".