500641040 has 20 divisors (see below), whose sum is σ = 1163990604. Its totient is φ = 200256384.

The previous prime is 500641003. The next prime is 500641061. The reversal of 500641040 is 40146005.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 89038096 + 411602944 = 9436^2 + 20288^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3128927 + ... + 3129086.

Almost surely, 2^500641040 is an apocalyptic number.

It is an amenable number.

500641040 is an abundant number, since it is smaller than the sum of its proper divisors (663349564).

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

500641040 is a wasteful number, since it uses less digits than its factorization.

500641040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6258026 (or 6258020 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 500641040 is about 22375.0092737411. The cubic root of 500641040 is about 794.0395769853.

Adding to 500641040 its reverse (40146005), we get a palindrome (540787045).

The spelling of 500641040 in words is "five hundred million, six hundred forty-one thousand, forty".