512409345 has 16 divisors (see below), whose sum is σ = 936977280. Its totient is φ = 234244224.

The previous prime is 512409329. The next prime is 512409377. The reversal of 512409345 is 543904215.

It is not a de Polignac number, because 512409345 - 2⁴ = 512409329 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2439940 + ... + 2440149.

It is an arithmetic number, because the mean of its divisors is an integer number (58561080).

Almost surely, 2^512409345 is an apocalyptic number.

It is an amenable number.

512409345 is a deficient number, since it is larger than the sum of its proper divisors (424567935).

512409345 is a wasteful number, since it uses less digits than its factorization.

512409345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4880104.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 512409345 is about 22636.4605227938. The cubic root of 512409345 is about 800.2131437280.

The spelling of 512409345 in words is "five hundred twelve million, four hundred nine thousand, three hundred forty-five".