505574424 has 96 divisors (see below), whose sum is σ = 1455498720. Its totient is φ = 157989888.

The previous prime is 505574393. The next prime is 505574437. The reversal of 505574424 is 424475505.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 387357 + ... + 388659.

It is an arithmetic number, because the mean of its divisors is an integer number (15161445).

Almost surely, 2^505574424 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 505574424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (727749360).

505574424 is an abundant number, since it is smaller than the sum of its proper divisors (949924296).

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

505574424 is a wasteful number, since it uses less digits than its factorization.

505574424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1649 (or 1642 counting only the distinct ones).

The product of its (nonzero) digits is 112000, while the sum is 36.

The square root of 505574424 is about 22484.9821881184. The cubic root of 505574424 is about 796.6392472799.

The spelling of 505574424 in words is "five hundred five million, five hundred seventy-four thousand, four hundred twenty-four".