512036449 has 4 divisors (see below), whose sum is σ = 512108800. Its totient is φ = 511964100.

The previous prime is 512036363. The next prime is 512036461. The reversal of 512036449 is 944630215.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-512036449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (512036479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24249 + ... + 40150.

It is an arithmetic number, because the mean of its divisors is an integer number (128027200).

Almost surely, 2^512036449 is an apocalyptic number.

It is an amenable number.

512036449 is a deficient number, since it is larger than the sum of its proper divisors (72351).

512036449 is an equidigital number, since it uses as much as digits as its factorization.

512036449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72350.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 512036449 is about 22628.2224003566. Note that the first 3 decimals coincide. The cubic root of 512036449 is about 800.0189834037.

The spelling of 512036449 in words is "five hundred twelve million, thirty-six thousand, four hundred forty-nine".