201440120 has 64 divisors (see below), whose sum is σ = 529044480. Its totient is φ = 67591296.

The previous prime is 201440111. The next prime is 201440131. The reversal of 201440120 is 21044102.

It is a super-2 number, since 2×201440120² = 81156243891228800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 201440095 and 201440104.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5507 + ... + 20813.

It is an arithmetic number, because the mean of its divisors is an integer number (8266320).

Almost surely, 2^201440120 is an apocalyptic number.

201440120 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 201440120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (264522240).

201440120 is an abundant number, since it is smaller than the sum of its proper divisors (327604360).

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

201440120 is a wasteful number, since it uses less digits than its factorization.

201440120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15372 (or 15368 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 201440120 is about 14192.9602268167. The cubic root of 201440120 is about 586.2038375006.

Adding to 201440120 its reverse (21044102), we get a palindrome (222484222).

The spelling of 201440120 in words is "two hundred one million, four hundred forty thousand, one hundred twenty".