168394356 has 192 divisors, whose sum is σ = 501258240. Its totient is φ = 48522240.

The previous prime is 168394337. The next prime is 168394357. The reversal of 168394356 is 653493861.

168394356 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168394357) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2306736 + ... + 2306808.

It is an arithmetic number, because the mean of its divisors is an integer number (2610720).

Almost surely, 2^168394356 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 168394356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (250629120).

168394356 is an abundant number, since it is smaller than the sum of its proper divisors (332863884).

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

168394356 is a wasteful number, since it uses less digits than its factorization.

168394356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183 (or 175 counting only the distinct ones).

The product of its digits is 466560, while the sum is 45.

The square root of 168394356 is about 12976.6850928887. The cubic root of 168394356 is about 552.2162432540.

The spelling of 168394356 in words is "one hundred sixty-eight million, three hundred ninety-four thousand, three hundred fifty-six".