505307642 has 16 divisors (see below), whose sum is σ = 868148160. Its totient is φ = 216083808.

The previous prime is 505307633. The next prime is 505307681. The reversal of 505307642 is 246703505.

It is a junction number, because it is equal to n+sod(n) for n = 505307599 and 505307608.

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 7 ways as a sum of consecutive naturals, for example, 33092 + ... + 45887.

It is an arithmetic number, because the mean of its divisors is an integer number (54259260).

Almost surely, 2^505307642 is an apocalyptic number.

505307642 is a deficient number, since it is larger than the sum of its proper divisors (362840518).

505307642 is a wasteful number, since it uses less digits than its factorization.

505307642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79445.

The product of its (nonzero) digits is 25200, while the sum is 32.

The square root of 505307642 is about 22479.0489567508. The cubic root of 505307642 is about 796.4990988368.

The spelling of 505307642 in words is "five hundred five million, three hundred seven thousand, six hundred forty-two".