505861140 has 48 divisors (see below), whose sum is σ = 1418481792. Its totient is φ = 134699136.

The previous prime is 505861091. The next prime is 505861201. The reversal of 505861140 is 41168505.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 505861098 and 505861107.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 37822 + ... + 49418.

It is an arithmetic number, because the mean of its divisors is an integer number (29551704).

Almost surely, 2^505861140 is an apocalyptic number.

It is an amenable number.

505861140 is an abundant number, since it is smaller than the sum of its proper divisors (912620652).

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

505861140 is a wasteful number, since it uses less digits than its factorization.

505861140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12336 (or 12334 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 30.

The square root of 505861140 is about 22491.3570066370. The cubic root of 505861140 is about 796.7898126853.

The spelling of 505861140 in words is "five hundred five million, eight hundred sixty-one thousand, one hundred forty".