485555840 has 256 divisors, whose sum is σ = 1480550400. Its totient is φ = 147886080.

The previous prime is 485555839. The next prime is 485555857. The reversal of 485555840 is 48555584.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 485555791 and 485555800.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2907437 + ... + 2907603.

It is an arithmetic number, because the mean of its divisors is an integer number (5783400).

Almost surely, 2^485555840 is an apocalyptic number.

485555840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 485555840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (740275200).

485555840 is an abundant number, since it is smaller than the sum of its proper divisors (994994560).

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

485555840 is a wasteful number, since it uses less digits than its factorization.

485555840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263 (or 251 counting only the distinct ones).

The product of its (nonzero) digits is 640000, while the sum is 44.

The square root of 485555840 is about 22035.3316289998. The cubic root of 485555840 is about 785.9828332249.

The spelling of 485555840 in words is "four hundred eighty-five million, five hundred fifty-five thousand, eight hundred forty".