506340644 has 12 divisors (see below), whose sum is σ = 889251468. Its totient is φ = 252268800.

The previous prime is 506340539. The next prime is 506340647. The reversal of 506340644 is 446043605.

It can be written as a sum of positive squares in 2 ways, for example, as 117462244 + 388878400 = 10838^2 + 19720^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 506340644.

It is not an unprimeable number, because it can be changed into a prime (506340647) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 224117 + ... + 226364.

It is an arithmetic number, because the mean of its divisors is an integer number (74104289).

Almost surely, 2^506340644 is an apocalyptic number.

It is an amenable number.

506340644 is a deficient number, since it is larger than the sum of its proper divisors (382910824).

506340644 is a wasteful number, since it uses less digits than its factorization.

506340644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450766 (or 450764 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 32.

The square root of 506340644 is about 22502.0142209536. The cubic root of 506340644 is about 797.0414912697.

The spelling of 506340644 in words is "five hundred six million, three hundred forty thousand, six hundred forty-four".