504220028 has 24 divisors (see below), whose sum is σ = 962297280. Its totient is φ = 229769280.

The previous prime is 504219971. The next prime is 504220037. The reversal of 504220028 is 820022405.

It is a junction number, because it is equal to n+sod(n) for n = 504219985 and 504220012.

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, 57263 + ... + 65478.

It is an arithmetic number, because the mean of its divisors is an integer number (40095720).

Almost surely, 2^504220028 is an apocalyptic number.

It is an amenable number.

504220028 is a deficient number, since it is larger than the sum of its proper divisors (458077252).

504220028 is a wasteful number, since it uses less digits than its factorization.

504220028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122837 (or 122835 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 504220028 is about 22454.8441989696. The cubic root of 504220028 is about 795.9272321383.

The spelling of 504220028 in words is "five hundred four million, two hundred twenty thousand, twenty-eight".