288823668 has 24 divisors (see below), whose sum is σ = 770196672. Its totient is φ = 82521024.

The previous prime is 288823663. The next prime is 288823679. The reversal of 288823668 is 866328882.

It is a super-2 number, since 2×288823668² = 166838222393948448, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 288823668.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (288823663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1719105 + ... + 1719272.

It is an arithmetic number, because the mean of its divisors is an integer number (32091528).

Almost surely, 2^288823668 is an apocalyptic number.

288823668 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

288823668 is an abundant number, since it is smaller than the sum of its proper divisors (481373004).

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

288823668 is a wasteful number, since it uses less digits than its factorization.

288823668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3438391 (or 3438389 counting only the distinct ones).

The product of its digits is 1769472, while the sum is 51.

The square root of 288823668 is about 16994.8129733751. The cubic root of 288823668 is about 661.0144088506.

The spelling of 288823668 in words is "two hundred eighty-eight million, eight hundred twenty-three thousand, six hundred sixty-eight".