505238472 has 60 divisors (see below), whose sum is σ = 1416739995. Its totient is φ = 168222096.

The previous prime is 505238467. The next prime is 505238473. The reversal of 505238472 is 274832505.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

505238472 is a `hidden beast` number, since 50 + 523 + 84 + 7 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 252619236 + 252619236 = 15894^2 + 15894^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=15894.

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

It is not an unprimeable number, because it can be changed into a prime (505238473) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 571743 + ... + 572625.

Almost surely, 2^505238472 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 505238472

505238472 is an abundant number, since it is smaller than the sum of its proper divisors (911501523).

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

505238472 is an frugal number, since it uses more digits than its factorization.

505238472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1784 (or 888 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The square root of 505238472 is about 22477.5103603580. The cubic root of 505238472 is about 796.4627537458.

The spelling of 505238472 in words is "five hundred five million, two hundred thirty-eight thousand, four hundred seventy-two".