506722000 has 40 divisors (see below), whose sum is σ = 1225258632. Its totient is φ = 202688000.

The previous prime is 506721979. The next prime is 506722003. The reversal of 506722000 is 227605.

It can be written as a sum of positive squares in 4 ways, for example, as 63872064 + 442849936 = 7992^2 + 21044^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (506722003) by changing a digit.

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, 124681 + ... + 128680.

Almost surely, 2^506722000 is an apocalyptic number.

506722000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

506722000 is an abundant number, since it is smaller than the sum of its proper divisors (718536632).

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

506722000 is a wasteful number, since it uses less digits than its factorization.

506722000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253384 (or 253368 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 506722000 is about 22510.4864452104. The cubic root of 506722000 is about 797.2415412302.

Adding to 506722000 its reverse (227605), we get a palindrome (506949605).

The spelling of 506722000 in words is "five hundred six million, seven hundred twenty-two thousand".