12040722 has 12 divisors (see below), whose sum is σ = 26088270. Its totient is φ = 4013568.

The previous prime is 12040711. The next prime is 12040723. The reversal of 12040722 is 22704021.

It can be written as a sum of positive squares in only one way, i.e., 11350161 + 690561 = 3369^2 + 831^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 668929 = 12040722 / (1 + 2 + 0 + 4 + 0 + 7 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 12040695 and 12040704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12040723) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 334447 + ... + 334482.

Almost surely, 2^12040722 is an apocalyptic number.

12040722 is an abundant number, since it is smaller than the sum of its proper divisors (14047548).

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

12040722 is a wasteful number, since it uses less digits than its factorization.

12040722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668937 (or 668934 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 12040722 is about 3469.9743514902. The cubic root of 12040722 is about 229.2015286394.

Adding to 12040722 its reverse (22704021), we get a palindrome (34744743).

The spelling of 12040722 in words is "twelve million, forty thousand, seven hundred twenty-two".