288306396 has 108 divisors (see below), whose sum is σ = 851995872. Its totient is φ = 81962496.

The previous prime is 288306377. The next prime is 288306461. The reversal of 288306396 is 693603882.

288306396 is a `hidden beast` number, since 2 + 8 + 8 + 3 + 0 + 639 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 622461 + ... + 622923.

Almost surely, 2^288306396 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 288306396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (425997936).

288306396 is an abundant number, since it is smaller than the sum of its proper divisors (563689476).

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

288306396 is a wasteful number, since it uses less digits than its factorization.

288306396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840 (or 828 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The square root of 288306396 is about 16979.5876275014. The cubic root of 288306396 is about 660.6195559688.

The spelling of 288306396 in words is "two hundred eighty-eight million, three hundred six thousand, three hundred ninety-six".