506405342 has 8 divisors (see below), whose sum is σ = 759813600. Its totient is φ = 253134144.

The previous prime is 506405269. The next prime is 506405351. The reversal of 506405342 is 243504605.

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

It is a super-2 number, since 2×506405342² = 512892740812273928, which contains 22 as substring.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 24467 + ... + 40142.

It is an arithmetic number, because the mean of its divisors is an integer number (94976700).

Almost surely, 2^506405342 is an apocalyptic number.

506405342 is a deficient number, since it is larger than the sum of its proper divisors (253408258).

506405342 is a wasteful number, since it uses less digits than its factorization.

506405342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68530.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 506405342 is about 22503.4517796715. The cubic root of 506405342 is about 797.0754373195.

Adding to 506405342 its reverse (243504605), we get a palindrome (749909947).

The spelling of 506405342 in words is "five hundred six million, four hundred five thousand, three hundred forty-two".