163840242 has 16 divisors (see below), whose sum is σ = 327807072. Its totient is φ = 54592320.

The previous prime is 163840231. The next prime is 163840253. The reversal of 163840242 is 242048361.

163840242 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (163840231) and next prime (163840253).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24373 + ... + 30359.

It is an arithmetic number, because the mean of its divisors is an integer number (20487942).

Almost surely, 2^163840242 is an apocalyptic number.

163840242 is an abundant number, since it is smaller than the sum of its proper divisors (163966830).

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

163840242 is a wasteful number, since it uses less digits than its factorization.

163840242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10553.

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 163840242 is about 12800.0094531215. The cubic root of 163840242 is about 547.1925723467.

The spelling of 163840242 in words is "one hundred sixty-three million, eight hundred forty thousand, two hundred forty-two".