163814820 has 48 divisors (see below), whose sum is σ = 493967040. Its totient is φ = 40323456.

The previous prime is 163814801. The next prime is 163814831. The reversal of 163814820 is 28418361.

163814820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104230 + ... + 105789.

It is an arithmetic number, because the mean of its divisors is an integer number (10290980).

Almost surely, 2^163814820 is an apocalyptic number.

163814820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163814820 is an abundant number, since it is smaller than the sum of its proper divisors (330152220).

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

163814820 is a wasteful number, since it uses less digits than its factorization.

163814820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210044 (or 210042 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 163814820 is about 12799.0163684558. The cubic root of 163814820 is about 547.1642694728.

The spelling of 163814820 in words is "one hundred sixty-three million, eight hundred fourteen thousand, eight hundred twenty".