503142240 has 48 divisors (see below), whose sum is σ = 1584899568. Its totient is φ = 134171136.

The previous prime is 503142239. The next prime is 503142253. The reversal of 503142240 is 42241305.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×503142240² = 506304227344435200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 523627 + ... + 524586.

It is an arithmetic number, because the mean of its divisors is an integer number (33018741).

Almost surely, 2^503142240 is an apocalyptic number.

It is an amenable number.

503142240 is an abundant number, since it is smaller than the sum of its proper divisors (1081757328).

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

503142240 is a wasteful number, since it uses less digits than its factorization.

503142240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1048231 (or 1048223 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 503142240 is about 22430.8323519213. The cubic root of 503142240 is about 795.3597201260.

Adding to 503142240 its reverse (42241305), we get a palindrome (545383545).

The spelling of 503142240 in words is "five hundred three million, one hundred forty-two thousand, two hundred forty".