201440160 has 144 divisors (see below), whose sum is σ = 699360480. Its totient is φ = 52784640.

The previous prime is 201440159. The next prime is 201440171. The reversal of 201440160 is 61044102.

201440160 is a `hidden beast` number, since 201 + 4 + 401 + 60 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 83775 + ... + 86145.

It is an arithmetic number, because the mean of its divisors is an integer number (4856670).

Almost surely, 2^201440160 is an apocalyptic number.

201440160 is a gapful number since it is divisible by the number (20) 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 201440160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (349680240).

201440160 is an abundant number, since it is smaller than the sum of its proper divisors (497920320).

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

201440160 is a wasteful number, since it uses less digits than its factorization.

201440160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2451 (or 2440 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 201440160 is about 14192.9616359659. The cubic root of 201440160 is about 586.2038763015.

Adding to 201440160 its reverse (61044102), we get a palindrome (262484262).

The spelling of 201440160 in words is "two hundred one million, four hundred forty thousand, one hundred sixty".