228996216 has 24 divisors (see below), whose sum is σ = 620198280. Its totient is φ = 76332048.

The previous prime is 228996197. The next prime is 228996221. The reversal of 228996216 is 612699822.

228996216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (24).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1590180 + ... + 1590323.

It is an arithmetic number, because the mean of its divisors is an integer number (25841595).

Almost surely, 2^228996216 is an apocalyptic number.

It is an amenable number.

228996216 is an abundant number, since it is smaller than the sum of its proper divisors (391202064).

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

228996216 is a wasteful number, since it uses less digits than its factorization.

228996216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3180515 (or 3180508 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 228996216 is about 15132.6209230259. The cubic root of 228996216 is about 611.7999474289.

The spelling of 228996216 in words is "two hundred twenty-eight million, nine hundred ninety-six thousand, two hundred sixteen".