163304406 has 12 divisors (see below), whose sum is σ = 353826252. Its totient is φ = 54434796.

The previous prime is 163304399. The next prime is 163304417. The reversal of 163304406 is 604403361.

It is a self number, because there is not a number n which added to its sum of digits gives 163304406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4536216 + ... + 4536251.

It is an arithmetic number, because the mean of its divisors is an integer number (29485521).

Almost surely, 2^163304406 is an apocalyptic number.

163304406 is an abundant number, since it is smaller than the sum of its proper divisors (190521846).

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

163304406 is a wasteful number, since it uses less digits than its factorization.

163304406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9072475 (or 9072472 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 163304406 is about 12779.0612331266. The cubic root of 163304406 is about 546.5953936593.

Adding to 163304406 its reverse (604403361), we get a palindrome (767707767).

It can be divided in two parts, 16330 and 4406, that added together give a 4-th power (20736 = 12⁴).

The spelling of 163304406 in words is "one hundred sixty-three million, three hundred four thousand, four hundred six".