485138880 has 84 divisors (see below), whose sum is σ = 1668685512. Its totient is φ = 129369600.

The previous prime is 485138873. The next prime is 485138891. The reversal of 485138880 is 88831584.

485138880 is a `hidden beast` number, since 485 + 13 + 88 + 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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81346 + ... + 87105.

Almost surely, 2^485138880 is an apocalyptic number.

485138880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

485138880 is an abundant number, since it is smaller than the sum of its proper divisors (1183546632).

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

485138880 is a wasteful number, since it uses less digits than its factorization.

485138880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168474 (or 168461 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 45.

The square root of 485138880 is about 22025.8684278282. The cubic root of 485138880 is about 785.7577871861.

The spelling of 485138880 in words is "four hundred eighty-five million, one hundred thirty-eight thousand, eight hundred eighty".