12016240 has 20 divisors (see below), whose sum is σ = 27937944. Its totient is φ = 4806464.

The previous prime is 12016219. The next prime is 12016241. The reversal of 12016240 is 4261021.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12016241) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 75022 + ... + 75181.

Almost surely, 2^12016240 is an apocalyptic number.

12016240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12016240 is an abundant number, since it is smaller than the sum of its proper divisors (15921704).

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

12016240 is a wasteful number, since it uses less digits than its factorization.

12016240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150216 (or 150210 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 12016240 is about 3466.4448646993. Note that the first 3 decimals coincide. The cubic root of 12016240 is about 229.0460806183.

Adding to 12016240 its reverse (4261021), we get a palindrome (16277261).

The spelling of 12016240 in words is "twelve million, sixteen thousand, two hundred forty".