228646698 has 64 divisors (see below), whose sum is σ = 534159360. Its totient is φ = 63902592.

The previous prime is 228646667. The next prime is 228646699. The reversal of 228646698 is 896646822.

It is a self number, because there is not a number n which added to its sum of digits gives 228646698.

It is not an unprimeable number, because it can be changed into a prime (228646699) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 454315 + ... + 454817.

It is an arithmetic number, because the mean of its divisors is an integer number (8346240).

Almost surely, 2^228646698 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228646698, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (267079680).

228646698 is an abundant number, since it is smaller than the sum of its proper divisors (305512662).

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

228646698 is a wasteful number, since it uses less digits than its factorization.

228646698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731.

The product of its digits is 1990656, while the sum is 51.

The square root of 228646698 is about 15121.0680178352. The cubic root of 228646698 is about 611.4885245553.

It can be divided in two parts, 2286 and 46698, that added together give a palindrome (48984).

The spelling of 228646698 in words is "two hundred twenty-eight million, six hundred forty-six thousand, six hundred ninety-eight".