512426636 has 12 divisors (see below), whose sum is σ = 927669120. Its totient is φ = 247378320.

The previous prime is 512426617. The next prime is 512426647. The reversal of 512426636 is 636624215.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 512426596 and 512426605.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2208620 + ... + 2208851.

It is an arithmetic number, because the mean of its divisors is an integer number (77305760).

Almost surely, 2^512426636 is an apocalyptic number.

It is an amenable number.

512426636 is a deficient number, since it is larger than the sum of its proper divisors (415242484).

512426636 is a wasteful number, since it uses less digits than its factorization.

512426636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4417504 (or 4417502 counting only the distinct ones).

The product of its digits is 51840, while the sum is 35.

The square root of 512426636 is about 22636.8424476560. The cubic root of 512426636 is about 800.2221445590. Note that the first 3 decimals are identical.

The spelling of 512426636 in words is "five hundred twelve million, four hundred twenty-six thousand, six hundred thirty-six".