512140040 has 32 divisors (see below), whose sum is σ = 1168551360. Its totient is φ = 201969600.

The previous prime is 512140039. The next prime is 512140099. The reversal of 512140040 is 40041215.

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, 87326 + ... + 93005.

It is an arithmetic number, because the mean of its divisors is an integer number (36517230).

Almost surely, 2^512140040 is an apocalyptic number.

It is an amenable number.

512140040 is an abundant number, since it is smaller than the sum of its proper divisors (656411320).

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

512140040 is a wasteful number, since it uses less digits than its factorization.

512140040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180413 (or 180409 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 512140040 is about 22630.5112624527. The cubic root of 512140040 is about 800.0729308512.

Adding to 512140040 its reverse (40041215), we get a palindrome (552181255).

The spelling of 512140040 in words is "five hundred twelve million, one hundred forty thousand, forty".