163364388 has 48 divisors (see below), whose sum is σ = 417204480. Its totient is φ = 49341600.

The previous prime is 163364381. The next prime is 163364447. The reversal of 163364388 is 883463361.

163364388 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×163364388² = 53375846533229088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (163364381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41823 + ... + 45561.

It is an arithmetic number, because the mean of its divisors is an integer number (8691760).

Almost surely, 2^163364388 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 163364388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208602240).

163364388 is an abundant number, since it is smaller than the sum of its proper divisors (253840092).

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

163364388 is a wasteful number, since it uses less digits than its factorization.

163364388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4088 (or 4086 counting only the distinct ones).

The product of its digits is 248832, while the sum is 42.

The square root of 163364388 is about 12781.4079036701. The cubic root of 163364388 is about 546.6623072889.

The spelling of 163364388 in words is "one hundred sixty-three million, three hundred sixty-four thousand, three hundred eighty-eight".