512016836 has 6 divisors (see below), whose sum is σ = 896029470. Its totient is φ = 256008416.

The previous prime is 512016797. The next prime is 512016839. The reversal of 512016836 is 638610215.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 507150400 + 4866436 = 22520^2 + 2206^2 .

It is a super-2 number, since 2×512016836² = 524322480694901792, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (512016839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64002101 + ... + 64002108.

It is an arithmetic number, because the mean of its divisors is an integer number (149338245).

Almost surely, 2^512016836 is an apocalyptic number.

It is an amenable number.

512016836 is a deficient number, since it is larger than the sum of its proper divisors (384012634).

512016836 is a wasteful number, since it uses less digits than its factorization.

512016836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128004213 (or 128004211 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 512016836 is about 22627.7890214665. The cubic root of 512016836 is about 800.0087686539.

The spelling of 512016836 in words is "five hundred twelve million, sixteen thousand, eight hundred thirty-six".