163423180 has 24 divisors (see below), whose sum is σ = 361252080. Its totient is φ = 61928640.

The previous prime is 163423163. The next prime is 163423187. The reversal of 163423180 is 81324361.

It is a super-2 number, since 2×163423180² = 53414271522624800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (163423187) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214651 + ... + 215410.

It is an arithmetic number, because the mean of its divisors is an integer number (15052170).

Almost surely, 2^163423180 is an apocalyptic number.

163423180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163423180 is an abundant number, since it is smaller than the sum of its proper divisors (197828900).

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

163423180 is a wasteful number, since it uses less digits than its factorization.

163423180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430089 (or 430087 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 163423180 is about 12783.7075999101. The cubic root of 163423180 is about 546.7278775071.

The spelling of 163423180 in words is "one hundred sixty-three million, four hundred twenty-three thousand, one hundred eighty".