505469880 has 96 divisors (see below), whose sum is σ = 1695807360. Its totient is φ = 130440960.

The previous prime is 505469879. The next prime is 505469897. The reversal of 505469880 is 88964505.

505469880 is a `hidden beast` number, since 505 + 4 + 69 + 8 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11487 + ... + 33806.

It is an arithmetic number, because the mean of its divisors is an integer number (17664660).

Almost surely, 2^505469880 is an apocalyptic number.

It is an amenable number.

505469880 is an abundant number, since it is smaller than the sum of its proper divisors (1190337480).

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

505469880 is a wasteful number, since it uses less digits than its factorization.

505469880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45341 (or 45334 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 45.

The square root of 505469880 is about 22482.6573162516. The cubic root of 505469880 is about 796.5843331131.

The spelling of 505469880 in words is "five hundred five million, four hundred sixty-nine thousand, eight hundred eighty".