12034440 has 128 divisors (see below), whose sum is σ = 43804800. Its totient is φ = 2914560.

The previous prime is 12034439. The next prime is 12034441. The reversal of 12034440 is 4443021.

It is an interprime number because it is at equal distance from previous prime (12034439) and next prime (12034441).

It is a super-2 number, since 2×12034440² = 289655492227200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12034441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11374 + ... + 12386.

It is an arithmetic number, because the mean of its divisors is an integer number (342225).

Almost surely, 2^12034440 is an apocalyptic number.

12034440 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 12034440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21902400).

12034440 is an abundant number, since it is smaller than the sum of its proper divisors (31770360).

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

12034440 is a wasteful number, since it uses less digits than its factorization.

12034440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1044 (or 1034 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 12034440 is about 3469.0690393822. The cubic root of 12034440 is about 229.1616613048.

Adding to 12034440 its reverse (4443021), we get a palindrome (16477461).

The spelling of 12034440 in words is "twelve million, thirty-four thousand, four hundred forty".