505144024 has 96 divisors (see below), whose sum is σ = 1201213440. Its totient is φ = 194927040.

The previous prime is 505144019. The next prime is 505144049. The reversal of 505144024 is 420441505.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 505144024.

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, 860259 + ... + 860845.

It is an arithmetic number, because the mean of its divisors is an integer number (12512640).

Almost surely, 2^505144024 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 505144024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (600606720).

505144024 is an abundant number, since it is smaller than the sum of its proper divisors (696069416).

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

505144024 is a wasteful number, since it uses less digits than its factorization.

505144024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749 (or 734 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 505144024 is about 22475.4093177410. The cubic root of 505144024 is about 796.4131210764.

Adding to 505144024 its reverse (420441505), we get a palindrome (925585529).

The spelling of 505144024 in words is "five hundred five million, one hundred forty-four thousand, twenty-four".