168210396 has 36 divisors (see below), whose sum is σ = 431029872. Its totient is φ = 55301184.

The previous prime is 168210391. The next prime is 168210397. The reversal of 168210396 is 693012861.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 168210396.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168210391) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29376 + ... + 34631.

It is an arithmetic number, because the mean of its divisors is an integer number (11973052).

Almost surely, 2^168210396 is an apocalyptic number.

It is an amenable number.

168210396 is an abundant number, since it is smaller than the sum of its proper divisors (262819476).

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

168210396 is a wasteful number, since it uses less digits than its factorization.

168210396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64090 (or 64085 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 168210396 is about 12969.5950592145. The cubic root of 168210396 is about 552.0150830787.

The spelling of 168210396 in words is "one hundred sixty-eight million, two hundred ten thousand, three hundred ninety-six".