288898638 has 48 divisors (see below), whose sum is σ = 683978880. Its totient is φ = 79686432.

The previous prime is 288898619. The next prime is 288898657. The reversal of 288898638 is 836898882.

288898638 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (288898619) and next prime (288898657).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31233 + ... + 39411.

It is an arithmetic number, because the mean of its divisors is an integer number (14249560).

Almost surely, 2^288898638 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 288898638, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (341989440).

288898638 is an abundant number, since it is smaller than the sum of its proper divisors (395080242).

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

288898638 is a wasteful number, since it uses less digits than its factorization.

288898638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8249 (or 8220 counting only the distinct ones).

The product of its digits is 10616832, while the sum is 60.

The square root of 288898638 is about 16997.0185032552. The cubic root of 288898638 is about 661.0715971037.

The spelling of 288898638 in words is "two hundred eighty-eight million, eight hundred ninety-eight thousand, six hundred thirty-eight".