503540240 has 40 divisors (see below), whose sum is σ = 1337979840. Its totient is φ = 172642176.

The previous prime is 503540239. The next prime is 503540269. The reversal of 503540240 is 42045305.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 449030 + ... + 450149.

It is an arithmetic number, because the mean of its divisors is an integer number (33449496).

Almost surely, 2^503540240 is an apocalyptic number.

It is an amenable number.

503540240 is an abundant number, since it is smaller than the sum of its proper divisors (834439600).

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

503540240 is a wasteful number, since it uses less digits than its factorization.

503540240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 899199 (or 899193 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 503540240 is about 22439.7023153160. The cubic root of 503540240 is about 795.5693823332.

Adding to 503540240 its reverse (42045305), we get a palindrome (545585545).

The spelling of 503540240 in words is "five hundred three million, five hundred forty thousand, two hundred forty".