2160201240 has 96 divisors (see below), whose sum is σ = 7085192400. Its totient is φ = 570758400.

The previous prime is 2160201233. The next prime is 2160201247. The reversal of 2160201240 is 421020612.

2160201240 is a `hidden beast` number, since 21 + 602 + 0 + 1 + 2 + 40 = 666.

It is an interprime number because it is at equal distance from previous prime (2160201233) and next prime (2160201247).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2160201247) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11715 + ... + 66765.

Almost surely, 2^2160201240 is an apocalyptic number.

2160201240 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 2160201240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3542596200).

2160201240 is an abundant number, since it is smaller than the sum of its proper divisors (4924991160).

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

2160201240 is a wasteful number, since it uses less digits than its factorization.

2160201240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55177 (or 55170 counting only the distinct ones).

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

The square root of 2160201240 is about 46477.9651017555. The cubic root of 2160201240 is about 1292.7009570722.

Adding to 2160201240 its reverse (421020612), we get a palindrome (2581221852).

The spelling of 2160201240 in words is "two billion, one hundred sixty million, two hundred one thousand, two hundred forty".