505494418 has 64 divisors (see below), whose sum is σ = 938044800. Its totient is φ = 201116160.

The previous prime is 505494349. The next prime is 505494421. The reversal of 505494418 is 814494505.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 488830 + ... + 489862.

It is an arithmetic number, because the mean of its divisors is an integer number (14656950).

Almost surely, 2^505494418 is an apocalyptic number.

505494418 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

505494418 is a deficient number, since it is larger than the sum of its proper divisors (432550382).

505494418 is a wasteful number, since it uses less digits than its factorization.

505494418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1147.

The product of its (nonzero) digits is 115200, while the sum is 40.

The square root of 505494418 is about 22483.2030191430. The cubic root of 505494418 is about 796.5972229481.

The spelling of 505494418 in words is "five hundred five million, four hundred ninety-four thousand, four hundred eighteen".