163268406 has 128 divisors (see below), whose sum is σ = 442368000. Its totient is φ = 43600032.

The previous prime is 163268401. The next prime is 163268407. The reversal of 163268406 is 604862361.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163268401) 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, 912025 + ... + 912203.

It is an arithmetic number, because the mean of its divisors is an integer number (3456000).

Almost surely, 2^163268406 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 163268406, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (221184000).

163268406 is an abundant number, since it is smaller than the sum of its proper divisors (279099594).

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

163268406 is a wasteful number, since it uses less digits than its factorization.

163268406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343 (or 337 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 163268406 is about 12777.6526013192. The cubic root of 163268406 is about 546.5552255651. Note that the first 3 decimals are identical.

The spelling of 163268406 in words is "one hundred sixty-three million, two hundred sixty-eight thousand, four hundred six".