505313340 has 48 divisors (see below), whose sum is σ = 1617004032. Its totient is φ = 115500096.

The previous prime is 505313323. The next prime is 505313351. The reversal of 505313340 is 43313505.

It is a happy number.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 505313340.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 601144 + ... + 601983.

It is an arithmetic number, because the mean of its divisors is an integer number (33687584).

Almost surely, 2^505313340 is an apocalyptic number.

It is an amenable number.

505313340 is an abundant number, since it is smaller than the sum of its proper divisors (1111690692).

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

505313340 is a wasteful number, since it uses less digits than its factorization.

505313340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1203146 (or 1203144 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 24.

The square root of 505313340 is about 22479.1756966309. The cubic root of 505313340 is about 796.5020926795.

Adding to 505313340 its reverse (43313505), we get a palindrome (548626845).

The spelling of 505313340 in words is "five hundred five million, three hundred thirteen thousand, three hundred forty".