228961806236 has 24 divisors (see below), whose sum is σ = 403876247040. Its totient is φ = 113568763392.

The previous prime is 228961806223. The next prime is 228961806247. The reversal of 228961806236 is 632608169822.

It is a super-3 number, since 3×228961806236³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10206200 + ... + 10228608.

It is an arithmetic number, because the mean of its divisors is an integer number (16828176960).

Almost surely, 2^228961806236 is an apocalyptic number.

It is an amenable number.

228961806236 is a deficient number, since it is larger than the sum of its proper divisors (174914440804).

228961806236 is a wasteful number, since it uses less digits than its factorization.

228961806236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42653 (or 42651 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 53.

The spelling of 228961806236 in words is "two hundred twenty-eight billion, nine hundred sixty-one million, eight hundred six thousand, two hundred thirty-six".