163840268 has 12 divisors (see below), whose sum is σ = 301811160. Its totient is φ = 77608512.

The previous prime is 163840267. The next prime is 163840283. The reversal of 163840268 is 862048361.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (163840267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1077821 + ... + 1077972.

It is an arithmetic number, because the mean of its divisors is an integer number (25150930).

Almost surely, 2^163840268 is an apocalyptic number.

It is an amenable number.

163840268 is a deficient number, since it is larger than the sum of its proper divisors (137970892).

163840268 is a wasteful number, since it uses less digits than its factorization.

163840268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2155816 (or 2155814 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 163840268 is about 12800.0104687457. The cubic root of 163840268 is about 547.1926012916.

The spelling of 163840268 in words is "one hundred sixty-three million, eight hundred forty thousand, two hundred sixty-eight".