12030240 has 96 divisors (see below), whose sum is σ = 38537856. Its totient is φ = 3153920.

The previous prime is 12030233. The next prime is 12030253. The reversal of 12030240 is 4203021.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33904 + ... + 34256.

It is an arithmetic number, because the mean of its divisors is an integer number (401436).

Almost surely, 2^12030240 is an apocalyptic number.

12030240 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 12030240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19268928).

12030240 is an abundant number, since it is smaller than the sum of its proper divisors (26507616).

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

12030240 is a wasteful number, since it uses less digits than its factorization.

12030240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442 (or 434 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 12030240 is about 3468.4636368283. The cubic root of 12030240 is about 229.1349991871.

Adding to 12030240 its reverse (4203021), we get a palindrome (16233261).

The spelling of 12030240 in words is "twelve million, thirty thousand, two hundred forty".