485840040 has 128 divisors (see below), whose sum is σ = 1738229760. Its totient is φ = 106216704.

The previous prime is 485840023. The next prime is 485840041. The reversal of 485840040 is 40048584.

It is a junction number, because it is equal to n+sod(n) for n = 485839983 and 485840010.

It is not an unprimeable number, because it can be changed into a prime (485840041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6747 + ... + 31893.

It is an arithmetic number, because the mean of its divisors is an integer number (13579920).

Almost surely, 2^485840040 is an apocalyptic number.

485840040 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 485840040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (869114880).

485840040 is an abundant number, since it is smaller than the sum of its proper divisors (1252389720).

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

485840040 is a wasteful number, since it uses less digits than its factorization.

485840040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25191 (or 25187 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 33.

The square root of 485840040 is about 22041.7794200015. The cubic root of 485840040 is about 786.1361508152.

The spelling of 485840040 in words is "four hundred eighty-five million, eight hundred forty thousand, forty".