512465140 has 24 divisors (see below), whose sum is σ = 1174011552. Its totient is φ = 186350880.

The previous prime is 512465117. The next prime is 512465143. The reversal of 512465140 is 41564215.

It is a junction number, because it is equal to n+sod(n) for n = 512465099 and 512465108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512465143) 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, 1164474 + ... + 1164913.

It is an arithmetic number, because the mean of its divisors is an integer number (48917148).

Almost surely, 2^512465140 is an apocalyptic number.

It is an amenable number.

512465140 is an abundant number, since it is smaller than the sum of its proper divisors (661546412).

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

512465140 is a wasteful number, since it uses less digits than its factorization.

512465140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2329407 (or 2329405 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 512465140 is about 22637.6929036508. The cubic root of 512465140 is about 800.2421870910.

The spelling of 512465140 in words is "five hundred twelve million, four hundred sixty-five thousand, one hundred forty".