505742 has 8 divisors (see below), whose sum is σ = 798600. Its totient is φ = 239544.

The previous prime is 505727. The next prime is 505759. The reversal of 505742 is 247505.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6617 + ... + 6692.

It is an arithmetic number, because the mean of its divisors is an integer number (99825).

2⁵⁰⁵⁷⁴² is an apocalyptic number.

505742 is a deficient number, since it is larger than the sum of its proper divisors (292858).

505742 is a wasteful number, since it uses less digits than its factorization.

505742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13330.

The product of its (nonzero) digits is 1400, while the sum is 23.

The square root of 505742 is about 711.1553979265. The cubic root of 505742 is about 79.6727254680.

The spelling of 505742 in words is "five hundred five thousand, seven hundred forty-two".