288427320 has 48 divisors (see below), whose sum is σ = 937389960. Its totient is φ = 76913856.

The previous prime is 288427319. The next prime is 288427331. The reversal of 288427320 is 23724882.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 400234 + ... + 400953.

Almost surely, 2^288427320 is an apocalyptic number.

288427320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

288427320 is an abundant number, since it is smaller than the sum of its proper divisors (648962640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

288427320 is a wasteful number, since it uses less digits than its factorization.

288427320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801204 (or 801197 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 288427320 is about 16983.1481180610. The cubic root of 288427320 is about 660.7119040103.

The spelling of 288427320 in words is "two hundred eighty-eight million, four hundred twenty-seven thousand, three hundred twenty".