163923424 has 36 divisors (see below), whose sum is σ = 375417504. Its totient is φ = 70252224.

The previous prime is 163923413. The next prime is 163923427. The reversal of 163923424 is 424329361.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 163923424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163923427) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50704 + ... + 53839.

It is an arithmetic number, because the mean of its divisors is an integer number (10428264).

Almost surely, 2^163923424 is an apocalyptic number.

163923424 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

163923424 is an abundant number, since it is smaller than the sum of its proper divisors (211494080).

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

163923424 is a wasteful number, since it uses less digits than its factorization.

163923424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104567 (or 104552 counting only the distinct ones).

The product of its digits is 31104, while the sum is 34.

The square root of 163923424 is about 12803.2583352832. The cubic root of 163923424 is about 547.2851602466.

The spelling of 163923424 in words is "one hundred sixty-three million, nine hundred twenty-three thousand, four hundred twenty-four".