505344303040 has 56 divisors (see below), whose sum is σ = 1203414664032. Its totient is φ = 202127047680.

The previous prime is 505344303017. The next prime is 505344303137. The reversal of 505344303040 is 40303443505.

It is a super-2 number, since 2×505344303040² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 505344302993 and 505344303011.

It is a congruent number.

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, 9277485 + ... + 9331795.

It is an arithmetic number, because the mean of its divisors is an integer number (21489547572).

Almost surely, 2^505344303040 is an apocalyptic number.

It is an amenable number.

505344303040 is an abundant number, since it is smaller than the sum of its proper divisors (698070360992).

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

505344303040 is a wasteful number, since it uses less digits than its factorization.

505344303040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83405 (or 83395 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 31.

Adding to 505344303040 its reverse (40303443505), we get a palindrome (545647746545).

The spelling of 505344303040 in words is "five hundred five billion, three hundred forty-four million, three hundred three thousand, forty".