229220916 has 24 divisors (see below), whose sum is σ = 535150560. Its totient is φ = 76363872.

The previous prime is 229220891. The next prime is 229220941. The reversal of 229220916 is 619022922.

It is an interprime number because it is at equal distance from previous prime (229220891) and next prime (229220941).

It is a super-3 number, since 3×229220916³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22575 + ... + 31113.

It is an arithmetic number, because the mean of its divisors is an integer number (22297940).

Almost surely, 2^229220916 is an apocalyptic number.

It is an amenable number.

229220916 is an abundant number, since it is smaller than the sum of its proper divisors (305929644).

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

229220916 is a wasteful number, since it uses less digits than its factorization.

229220916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10783 (or 10781 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 229220916 is about 15140.0434609680. The cubic root of 229220916 is about 611.9999893203. Note that the first 4 decimals are identical.

The spelling of 229220916 in words is "two hundred twenty-nine million, two hundred twenty thousand, nine hundred sixteen".