12051438 has 32 divisors (see below), whose sum is σ = 28190976. Its totient is φ = 3362688.

The previous prime is 12051433. The next prime is 12051451. The reversal of 12051438 is 83415021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12051433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1531 + ... + 5142.

It is an arithmetic number, because the mean of its divisors is an integer number (880968).

Almost surely, 2^12051438 is an apocalyptic number.

12051438 is an abundant number, since it is smaller than the sum of its proper divisors (16139538).

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

12051438 is a wasteful number, since it uses less digits than its factorization.

12051438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6728.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 12051438 is about 3471.5181117200. The cubic root of 12051438 is about 229.2695033923.

Adding to 12051438 its reverse (83415021), we get a palindrome (95466459).

The spelling of 12051438 in words is "twelve million, fifty-one thousand, four hundred thirty-eight".