506660394 has 16 divisors (see below), whose sum is σ = 1013934240. Its totient is φ = 168784560.

The previous prime is 506660389. The next prime is 506660419. The reversal of 506660394 is 493066605.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14452 + ... + 34959.

It is an arithmetic number, because the mean of its divisors is an integer number (63370890).

Almost surely, 2^506660394 is an apocalyptic number.

506660394 is an abundant number, since it is smaller than the sum of its proper divisors (507273846).

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

506660394 is a wasteful number, since it uses less digits than its factorization.

506660394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51125.

The product of its (nonzero) digits is 116640, while the sum is 39.

The square root of 506660394 is about 22509.1180191495. The cubic root of 506660394 is about 797.2092310397.

The spelling of 506660394 in words is "five hundred six million, six hundred sixty thousand, three hundred ninety-four".