163801040 has 80 divisors (see below), whose sum is σ = 412473600. Its totient is φ = 60135936.

The previous prime is 163801039. The next prime is 163801073. The reversal of 163801040 is 40108361.

163801040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 163800997 and 163801015.

It is a congruent number.

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, 248231 + ... + 248889.

It is an arithmetic number, because the mean of its divisors is an integer number (5155920).

Almost surely, 2^163801040 is an apocalyptic number.

163801040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 163801040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206236800).

163801040 is an abundant number, since it is smaller than the sum of its proper divisors (248672560).

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

163801040 is a wasteful number, since it uses less digits than its factorization.

163801040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 924 (or 918 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 163801040 is about 12798.4780345164. The cubic root of 163801040 is about 547.1489266708.

The spelling of 163801040 in words is "one hundred sixty-three million, eight hundred one thousand, forty".