2160000 has 160 divisors (see below), whose sum is σ = 7966200. Its totient is φ = 576000.

The previous prime is 2159959. The next prime is 2160001. The reversal of 2160000 is 612.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is a tau number, because it is divible by the number of its divisors (160).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2160001) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 431998 + ... + 432002.

2^2160000 is an apocalyptic number.

2160000 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 2160000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3983100).

2160000 is an abundant number, since it is smaller than the sum of its proper divisors (5806200).

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

2160000 is an frugal number, since it uses more digits than its factorization.

2160000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43 (or 10 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 2160000 is about 1469.6938456699. The cubic root of 2160000 is about 129.2660814019.

Adding to 2160000 its reverse (612), we get a palindrome (2160612).

The spelling of 2160000 in words is "two million, one hundred sixty thousand".