163393830 has 48 divisors (see below), whose sum is σ = 439480080. Its totient is φ = 42068544.

The previous prime is 163393799. The next prime is 163393831. The reversal of 163393830 is 38393361.

163393830 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163393831) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28692 + ... + 33911.

It is an arithmetic number, because the mean of its divisors is an integer number (9155835).

Almost surely, 2^163393830 is an apocalyptic number.

163393830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

163393830 is an abundant number, since it is smaller than the sum of its proper divisors (276086250).

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

163393830 is a wasteful number, since it uses less digits than its factorization.

163393830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62645 (or 62642 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 36.

The square root of 163393830 is about 12782.5596028339. The cubic root of 163393830 is about 546.6951456675.

The spelling of 163393830 in words is "one hundred sixty-three million, three hundred ninety-three thousand, eight hundred thirty".