168314228 has 6 divisors (see below), whose sum is σ = 294549906. Its totient is φ = 84157112.

The previous prime is 168314213. The next prime is 168314249. The reversal of 168314228 is 822413861.

It can be written as a sum of positive squares in only one way, i.e., 151240804 + 17073424 = 12298^2 + 4132^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21039275 + ... + 21039282.

It is an arithmetic number, because the mean of its divisors is an integer number (49091651).

Almost surely, 2^168314228 is an apocalyptic number.

It is an amenable number.

168314228 is a deficient number, since it is larger than the sum of its proper divisors (126235678).

168314228 is a wasteful number, since it uses less digits than its factorization.

168314228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42078561 (or 42078559 counting only the distinct ones).

The product of its digits is 18432, while the sum is 35.

The square root of 168314228 is about 12973.5973422949. The cubic root of 168314228 is about 552.1286413409.

The spelling of 168314228 in words is "one hundred sixty-eight million, three hundred fourteen thousand, two hundred twenty-eight".