512440422 has 32 divisors (see below), whose sum is σ = 1104673248. Its totient is φ = 157537536.

The previous prime is 512440421. The next prime is 512440433. The reversal of 512440422 is 224044215.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 512440392 and 512440401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512440421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123778 + ... + 127850.

It is an arithmetic number, because the mean of its divisors is an integer number (34521039).

Almost surely, 2^512440422 is an apocalyptic number.

512440422 is an abundant number, since it is smaller than the sum of its proper divisors (592232826).

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

512440422 is a wasteful number, since it uses less digits than its factorization.

512440422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5704.

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 512440422 is about 22637.1469492072. The cubic root of 512440422 is about 800.2293207171.

Adding to 512440422 its reverse (224044215), we get a palindrome (736484637).

The spelling of 512440422 in words is "five hundred twelve million, four hundred forty thousand, four hundred twenty-two".