228783616 has 40 divisors (see below), whose sum is σ = 465800544. Its totient is φ = 112220160.

The previous prime is 228783613. The next prime is 228783619. The reversal of 228783616 is 616387822.

It is an interprime number because it is at equal distance from previous prime (228783613) and next prime (228783619).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228783613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22921 + ... + 31351.

Almost surely, 2^228783616 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 228783616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (232900272).

228783616 is an abundant number, since it is smaller than the sum of its proper divisors (237016928).

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

228783616 is an frugal number, since it uses more digits than its factorization.

228783616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8502 (or 8486 counting only the distinct ones).

The product of its digits is 193536, while the sum is 43.

The square root of 228783616 is about 15125.5947321089. The cubic root of 228783616 is about 611.6105571939.

The spelling of 228783616 in words is "two hundred twenty-eight million, seven hundred eighty-three thousand, six hundred sixteen".