503404312 has 32 divisors (see below), whose sum is σ = 986503680. Its totient is φ = 240372000.

The previous prime is 503404309. The next prime is 503404313. The reversal of 503404312 is 213404305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503404313) 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, 136363 + ... + 140005.

It is an arithmetic number, because the mean of its divisors is an integer number (30828240).

Almost surely, 2^503404312 is an apocalyptic number.

It is an amenable number.

503404312 is a deficient number, since it is larger than the sum of its proper divisors (483099368).

503404312 is a wasteful number, since it uses less digits than its factorization.

503404312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4423 (or 4419 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 503404312 is about 22436.6733719596. The cubic root of 503404312 is about 795.4977893213.

Adding to 503404312 its reverse (213404305), we get a palindrome (716808617).

The spelling of 503404312 in words is "five hundred three million, four hundred four thousand, three hundred twelve".