512440542 has 12 divisors (see below), whose sum is σ = 1110287880. Its totient is φ = 170813508.

The previous prime is 512440499. The next prime is 512440543. The reversal of 512440542 is 245044215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512440543) 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 5 ways as a sum of consecutive naturals, for example, 14234442 + ... + 14234477.

It is an arithmetic number, because the mean of its divisors is an integer number (92523990).

Almost surely, 2^512440542 is an apocalyptic number.

512440542 is an abundant number, since it is smaller than the sum of its proper divisors (597847338).

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

512440542 is a wasteful number, since it uses less digits than its factorization.

512440542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28468927 (or 28468924 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 512440542 is about 22637.1495997177. The cubic root of 512440542 is about 800.2293831812.

Adding to 512440542 its reverse (245044215), we get a palindrome (757484757).

The spelling of 512440542 in words is "five hundred twelve million, four hundred forty thousand, five hundred forty-two".