505413444 has 24 divisors (see below), whose sum is σ = 1184592640. Its totient is φ = 167714784.

The previous prime is 505413439. The next prime is 505413449. The reversal of 505413444 is 444314505.

It is an interprime number because it is at equal distance from previous prime (505413439) and next prime (505413449).

It is a super-2 number, since 2×505413444² = 510885498751882272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (505413449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91759 + ... + 97110.

Almost surely, 2^505413444 is an apocalyptic number.

It is an amenable number.

505413444 is an abundant number, since it is smaller than the sum of its proper divisors (679179196).

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

505413444 is a wasteful number, since it uses less digits than its factorization.

505413444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189099 (or 189097 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 505413444 is about 22481.4021804691. The cubic root of 505413444 is about 796.5546856449.

Adding to 505413444 its reverse (444314505), we get a palindrome (949727949).

The spelling of 505413444 in words is "five hundred five million, four hundred thirteen thousand, four hundred forty-four".