512222018 has 16 divisors (see below), whose sum is σ = 957921984. Its totient is φ = 199566960.

The previous prime is 512221973. The next prime is 512222047. The reversal of 512222018 is 810222215.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 512221984 and 512222002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1662905 + ... + 1663212.

It is an arithmetic number, because the mean of its divisors is an integer number (59870124).

Almost surely, 2^512222018 is an apocalyptic number.

512222018 is a deficient number, since it is larger than the sum of its proper divisors (445699966).

512222018 is a wasteful number, since it uses less digits than its factorization.

512222018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3326137.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 512222018 is about 22632.3224172863. The cubic root of 512222018 is about 800.1156176649.

The spelling of 512222018 in words is "five hundred twelve million, two hundred twenty-two thousand, eighteen".