512340985 has 64 divisors (see below), whose sum is σ = 770757120. Its totient is φ = 322375680.

The previous prime is 512340973. The next prime is 512341003. The reversal of 512340985 is 589043215.

It is not a de Polignac number, because 512340985 - 2¹⁷ = 512209913 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 482355 + ... + 483415.

It is an arithmetic number, because the mean of its divisors is an integer number (12043080).

Almost surely, 2^512340985 is an apocalyptic number.

It is an amenable number.

512340985 is a deficient number, since it is larger than the sum of its proper divisors (258416135).

512340985 is a wasteful number, since it uses less digits than its factorization.

512340985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1138.

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 512340985 is about 22634.9505190535. The cubic root of 512340985 is about 800.1775569432.

The spelling of 512340985 in words is "five hundred twelve million, three hundred forty thousand, nine hundred eighty-five".