512440722 has 16 divisors (see below), whose sum is σ = 1138757280. Its totient is φ = 170813556.

The previous prime is 512440703. The next prime is 512440727. The reversal of 512440722 is 227044215.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (512440727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4744768 + ... + 4744875.

It is an arithmetic number, because the mean of its divisors is an integer number (71172330).

Almost surely, 2^512440722 is an apocalyptic number.

512440722 is an abundant number, since it is smaller than the sum of its proper divisors (626316558).

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

512440722 is a wasteful number, since it uses less digits than its factorization.

512440722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9489654 (or 9489648 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 27.

The square root of 512440722 is about 22637.1535754829. The cubic root of 512440722 is about 800.2294768775.

Adding to 512440722 its reverse (227044215), we get a palindrome (739484937).

The spelling of 512440722 in words is "five hundred twelve million, four hundred forty thousand, seven hundred twenty-two".