288438198 has 64 divisors (see below), whose sum is σ = 617379840. Its totient is φ = 89683200.

The previous prime is 288438181. The next prime is 288438203. The reversal of 288438198 is 891834882.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 288438198.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 831061 + ... + 831407.

It is an arithmetic number, because the mean of its divisors is an integer number (9646560).

Almost surely, 2^288438198 is an apocalyptic number.

288438198 is an abundant number, since it is smaller than the sum of its proper divisors (328941642).

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

288438198 is a wasteful number, since it uses less digits than its factorization.

288438198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533.

The product of its digits is 884736, while the sum is 51.

The square root of 288438198 is about 16983.4683736862. The cubic root of 288438198 is about 660.7202101280.

The spelling of 288438198 in words is "two hundred eighty-eight million, four hundred thirty-eight thousand, one hundred ninety-eight".