503381004 has 96 divisors (see below), whose sum is σ = 1389158400. Its totient is φ = 138868992.

The previous prime is 503380981. The next prime is 503381009. The reversal of 503381004 is 400183305.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (503381009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 462549 + ... + 463635.

It is an arithmetic number, because the mean of its divisors is an integer number (14470400).

Almost surely, 2^503381004 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 503381004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (694579200).

503381004 is an abundant number, since it is smaller than the sum of its proper divisors (885777396).

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

503381004 is a wasteful number, since it uses less digits than its factorization.

503381004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1287 (or 1285 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 503381004 is about 22436.1539484823. The cubic root of 503381004 is about 795.4855117490.

The spelling of 503381004 in words is "five hundred three million, three hundred eighty-one thousand, four".