12052240 has 40 divisors (see below), whose sum is σ = 28391040. Its totient is φ = 4757376.

The previous prime is 12052231. The next prime is 12052259. The reversal of 12052240 is 4225021.

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 (16).

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 7 ways as a sum of consecutive naturals, for example, 5367 + ... + 7273.

It is an arithmetic number, because the mean of its divisors is an integer number (709776).

Almost surely, 2^12052240 is an apocalyptic number.

12052240 is a gapful number since it is divisible by the number (10) 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 12052240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14195520).

12052240 is an abundant number, since it is smaller than the sum of its proper divisors (16338800).

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

12052240 is a wasteful number, since it uses less digits than its factorization.

12052240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1999 (or 1993 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 12052240 is about 3471.6336212221. The cubic root of 12052240 is about 229.2745890942.

Adding to 12052240 its reverse (4225021), we get a palindrome (16277261).

The spelling of 12052240 in words is "twelve million, fifty-two thousand, two hundred forty".