530781606 has 64 divisors (see below), whose sum is σ = 1284480000. Its totient is φ = 161826336.

The previous prime is 530781569. The next prime is 530781607. The reversal of 530781606 is 606187035.

It is a super-2 number, since 2×530781606² = 563458226535878472, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530781607) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20835 + ... + 38673.

It is an arithmetic number, because the mean of its divisors is an integer number (20070000).

Almost surely, 2^530781606 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 530781606, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (642240000).

530781606 is an abundant number, since it is smaller than the sum of its proper divisors (753698394).

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

530781606 is a wasteful number, since it uses less digits than its factorization.

530781606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17898 (or 17892 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 530781606 is about 23038.6980100873. The cubic root of 530781606 is about 809.6648544906.

The spelling of 530781606 in words is "five hundred thirty million, seven hundred eighty-one thousand, six hundred six".