505999338 has 32 divisors (see below), whose sum is σ = 1091252736. Its totient is φ = 155491008.

The previous prime is 505999303. The next prime is 505999357. The reversal of 505999338 is 833999505.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63556 + ... + 71072.

It is an arithmetic number, because the mean of its divisors is an integer number (34101648).

Almost surely, 2^505999338 is an apocalyptic number.

505999338 is an abundant number, since it is smaller than the sum of its proper divisors (585253398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

505999338 is a wasteful number, since it uses less digits than its factorization.

505999338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8398.

The product of its (nonzero) digits is 1312200, while the sum is 51.

The square root of 505999338 is about 22494.4290436543. The cubic root of 505999338 is about 796.8623653575.

The spelling of 505999338 in words is "five hundred five million, nine hundred ninety-nine thousand, three hundred thirty-eight".