506651730 has 64 divisors (see below), whose sum is σ = 1344930048. Its totient is φ = 121340160.

The previous prime is 506651713. The next prime is 506651753. The reversal of 506651730 is 37156605.

It is a junction number, because it is equal to n+sod(n) for n = 506651691 and 506651700.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3126 + ... + 31985.

It is an arithmetic number, because the mean of its divisors is an integer number (21014532).

Almost surely, 2^506651730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 506651730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (672465024).

506651730 is an abundant number, since it is smaller than the sum of its proper divisors (838278318).

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

506651730 is a wasteful number, since it uses less digits than its factorization.

506651730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35171.

The product of its (nonzero) digits is 18900, while the sum is 33.

The square root of 506651730 is about 22508.9255629850. The cubic root of 506651730 is about 797.2046868649.

The spelling of 506651730 in words is "five hundred six million, six hundred fifty-one thousand, seven hundred thirty".