501028240 has 40 divisors (see below), whose sum is σ = 1167300288. Its totient is φ = 199996800.

The previous prime is 501028237. The next prime is 501028243. The reversal of 501028240 is 42820105.

It is an interprime number because it is at equal distance from previous prime (501028237) and next prime (501028243).

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (501028243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34015 + ... + 46465.

Almost surely, 2^501028240 is an apocalyptic number.

It is an amenable number.

501028240 is an abundant number, since it is smaller than the sum of its proper divisors (666272048).

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

501028240 is a wasteful number, since it uses less digits than its factorization.

501028240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12967 (or 12961 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 501028240 is about 22383.6601117869. The cubic root of 501028240 is about 794.2442298681.

Adding to 501028240 its reverse (42820105), we get a palindrome (543848345).

The spelling of 501028240 in words is "five hundred one million, twenty-eight thousand, two hundred forty".