228833937216 has 140 divisors (see below), whose sum is σ = 678543715300. Its totient is φ = 76254566400.

The previous prime is 228833937109. The next prime is 228833937323. The reversal of 228833937216 is 612739338822.

228833937216 is a `hidden beast` number, since 2 + 288 + 339 + 3 + 7 + 21 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (228833937109) and next prime (228833937323).

It can be written as a sum of positive squares in 2 ways, for example, as 148767575616 + 80066361600 = 385704^2 + 282960^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 28243566 + ... + 28251666.

Almost surely, 2^228833937216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228833937216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (339271857650).

228833937216 is an abundant number, since it is smaller than the sum of its proper divisors (449709778084).

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

228833937216 is an equidigital number, since it uses as much as digits as its factorization.

228833937216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13574 (or 13555 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 54.

The spelling of 228833937216 in words is "two hundred twenty-eight billion, eight hundred thirty-three million, nine hundred thirty-seven thousand, two hundred sixteen".