2160240 has 40 divisors (see below), whose sum is σ = 6697488. Its totient is φ = 576000.

The previous prime is 2160233. The next prime is 2160247. The reversal of 2160240 is 420612.

It is an interprime number because it is at equal distance from previous prime (2160233) and next prime (2160247).

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2160247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4261 + ... + 4740.

2^2160240 is an apocalyptic number.

2160240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2160240 is an abundant number, since it is smaller than the sum of its proper divisors (4537248).

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

2160240 is a wasteful number, since it uses less digits than its factorization.

2160240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9017 (or 9011 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2160240 is about 1469.7754930601. The cubic root of 2160240 is about 129.2708688572.

Adding to 2160240 its reverse (420612), we get a palindrome (2580852).

It can be divided in two parts, 2160 and 240, that multiplied together give a square (518400 = 720²).

The spelling of 2160240 in words is "two million, one hundred sixty thousand, two hundred forty".