512147240 has 32 divisors (see below), whose sum is σ = 1257089760. Its totient is φ = 186235200.

The previous prime is 512147231. The next prime is 512147257. The reversal of 512147240 is 42741215.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 581546 + ... + 582425.

It is an arithmetic number, because the mean of its divisors is an integer number (39284055).

Almost surely, 2^512147240 is an apocalyptic number.

It is an amenable number.

512147240 is an abundant number, since it is smaller than the sum of its proper divisors (744942520).

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

512147240 is a wasteful number, since it uses less digits than its factorization.

512147240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1163993 (or 1163989 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 512147240 is about 22630.6703391658. The cubic root of 512147240 is about 800.0766801500.

Adding to 512147240 its reverse (42741215), we get a palindrome (554888455).

The spelling of 512147240 in words is "five hundred twelve million, one hundred forty-seven thousand, two hundred forty".