512412240 has 40 divisors (see below), whose sum is σ = 1588478688. Its totient is φ = 136643200.

The previous prime is 512412157. The next prime is 512412269. The reversal of 512412240 is 42214215.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1067286 + ... + 1067765.

Almost surely, 2^512412240 is an apocalyptic number.

It is an amenable number.

512412240 is an abundant number, since it is smaller than the sum of its proper divisors (1076066448).

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

512412240 is a wasteful number, since it uses less digits than its factorization.

512412240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2135067 (or 2135061 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 512412240 is about 22636.5244682129. The cubic root of 512412240 is about 800.2146507345.

Adding to 512412240 its reverse (42214215), we get a palindrome (554626455).

The spelling of 512412240 in words is "five hundred twelve million, four hundred twelve thousand, two hundred forty".