506542390 has 16 divisors (see below), whose sum is σ = 912435840. Its totient is φ = 202470400.

The previous prime is 506542373. The next prime is 506542397. The reversal of 506542390 is 93245605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (506542397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3211 + ... + 31990.

It is an arithmetic number, because the mean of its divisors is an integer number (57027240).

Almost surely, 2^506542390 is an apocalyptic number.

506542390 is a deficient number, since it is larger than the sum of its proper divisors (405893450).

506542390 is a wasteful number, since it uses less digits than its factorization.

506542390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36647.

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 506542390 is about 22506.4966176435. The cubic root of 506542390 is about 797.1473347586.

Adding to 506542390 its reverse (93245605), we get a palindrome (599787995).

The spelling of 506542390 in words is "five hundred six million, five hundred forty-two thousand, three hundred ninety".