504421424 has 40 divisors (see below), whose sum is σ = 1107897840. Its totient is φ = 220555008.

The previous prime is 504421391. The next prime is 504421457. The reversal of 504421424 is 424124405.

It is an interprime number because it is at equal distance from previous prime (504421391) and next prime (504421457).

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a junction number, because it is equal to n+sod(n) for n = 504421393 and 504421402.

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, 59867 + ... + 67770.

It is an arithmetic number, because the mean of its divisors is an integer number (27697446).

Almost surely, 2^504421424 is an apocalyptic number.

It is an amenable number.

504421424 is an abundant number, since it is smaller than the sum of its proper divisors (603476416).

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

504421424 is a wasteful number, since it uses less digits than its factorization.

504421424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127677 (or 127671 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 26.

The square root of 504421424 is about 22459.3282179143. The cubic root of 504421424 is about 796.0331880138.

Adding to 504421424 its reverse (424124405), we get a palindrome (928545829).

The spelling of 504421424 in words is "five hundred four million, four hundred twenty-one thousand, four hundred twenty-four".