503540028 has 72 divisors (see below), whose sum is σ = 1289394288. Its totient is φ = 165681408.

The previous prime is 503540003. The next prime is 503540047. The reversal of 503540028 is 820045305.

It is a junction number, because it is equal to n+sod(n) for n = 503539983 and 503540010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1450951 + ... + 1451297.

It is an arithmetic number, because the mean of its divisors is an integer number (17908254).

Almost surely, 2^503540028 is an apocalyptic number.

It is an amenable number.

503540028 is an abundant number, since it is smaller than the sum of its proper divisors (785854260).

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

503540028 is a wasteful number, since it uses less digits than its factorization.

503540028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763 (or 758 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 503540028 is about 22439.6975915452. The cubic root of 503540028 is about 795.5692706832.

The spelling of 503540028 in words is "five hundred three million, five hundred forty thousand, twenty-eight".