12051738 has 48 divisors (see below), whose sum is σ = 27799200. Its totient is φ = 3762720.

The previous prime is 12051737. The next prime is 12051769. The reversal of 12051738 is 83715021.

It is not an unprimeable number, because it can be changed into a prime (12051737) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44668 + ... + 44936.

It is an arithmetic number, because the mean of its divisors is an integer number (579150).

Almost surely, 2^12051738 is an apocalyptic number.

12051738 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12051738, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13899600).

12051738 is an abundant number, since it is smaller than the sum of its proper divisors (15747462).

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

12051738 is a wasteful number, since it uses less digits than its factorization.

12051738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427 (or 424 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 12051738 is about 3471.5613202131. The cubic root of 12051738 is about 229.2714058010.

Adding to 12051738 its reverse (83715021), we get a palindrome (95766759).

The spelling of 12051738 in words is "twelve million, fifty-one thousand, seven hundred thirty-eight".