512124240 has 80 divisors (see below), whose sum is σ = 1603075968. Its totient is φ = 135234048.

The previous prime is 512124229. The next prime is 512124251. The reversal of 512124240 is 42421215.

It is an interprime number because it is at equal distance from previous prime (512124229) and next prime (512124251).

It is a tau number, because it is divible by the number of its divisors (80).

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 15 ways as a sum of consecutive naturals, for example, 14362 + ... + 35078.

Almost surely, 2^512124240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 512124240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (801537984).

512124240 is an abundant number, since it is smaller than the sum of its proper divisors (1090951728).

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

512124240 is a wasteful number, since it uses less digits than its factorization.

512124240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20836 (or 20830 counting only the distinct ones).

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

The square root of 512124240 is about 22630.1621735241. The cubic root of 512124240 is about 800.0647031001.

Adding to 512124240 its reverse (42421215), we get a palindrome (554545455).

The spelling of 512124240 in words is "five hundred twelve million, one hundred twenty-four thousand, two hundred forty".