505087308 has 72 divisors (see below), whose sum is σ = 1395313920. Its totient is φ = 152782560.

The previous prime is 505087307. The next prime is 505087327. The reversal of 505087308 is 803780505.

It is a happy number.

It is a super-2 number, since 2×505087308² = 510226377405373728, which contains 22 as substring.

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 (505087307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 382273 + ... + 383591.

It is an arithmetic number, because the mean of its divisors is an integer number (19379360).

Almost surely, 2^505087308 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 505087308, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (697656960).

505087308 is an abundant number, since it is smaller than the sum of its proper divisors (890226612).

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

505087308 is a wasteful number, since it uses less digits than its factorization.

505087308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2307 (or 2302 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 505087308 is about 22474.1475477937. The cubic root of 505087308 is about 796.3833136980.

The spelling of 505087308 in words is "five hundred five million, eighty-seven thousand, three hundred eight".