229918916 has 6 divisors (see below), whose sum is σ = 402358110. Its totient is φ = 114959456.

The previous prime is 229918907. The next prime is 229918919. The reversal of 229918916 is 619819922.

It can be written as a sum of positive squares in only one way, i.e., 136796416 + 93122500 = 11696^2 + 9650^2 .

It is not an unprimeable number, because it can be changed into a prime (229918919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28739861 + ... + 28739868.

It is an arithmetic number, because the mean of its divisors is an integer number (67059685).

Almost surely, 2^229918916 is an apocalyptic number.

It is an amenable number.

229918916 is a deficient number, since it is larger than the sum of its proper divisors (172439194).

229918916 is a wasteful number, since it uses less digits than its factorization.

229918916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57479733 (or 57479731 counting only the distinct ones).

The product of its digits is 139968, while the sum is 47.

The square root of 229918916 is about 15163.0773921391. The cubic root of 229918916 is about 612.6205596920.

The spelling of 229918916 in words is "two hundred twenty-nine million, nine hundred eighteen thousand, nine hundred sixteen".