505642698 has 24 divisors (see below), whose sum is σ = 1195155936. Its totient is φ = 153225000.

The previous prime is 505642673. The next prime is 505642729. The reversal of 505642698 is 896246505.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1276678 + ... + 1277073.

It is an arithmetic number, because the mean of its divisors is an integer number (49798164).

Almost surely, 2^505642698 is an apocalyptic number.

505642698 is an abundant number, since it is smaller than the sum of its proper divisors (689513238).

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

505642698 is a wasteful number, since it uses less digits than its factorization.

505642698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2553770 (or 2553767 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The square root of 505642698 is about 22486.5003502101. The cubic root of 505642698 is about 796.6751056997.

The spelling of 505642698 in words is "five hundred five million, six hundred forty-two thousand, six hundred ninety-eight".