485504240 has 80 divisors (see below), whose sum is σ = 1268543808. Its totient is φ = 171460608.

The previous prime is 485504233. The next prime is 485504249. The reversal of 485504240 is 42405584.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 485504197 and 485504206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (485504249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13772 + ... + 34068.

Almost surely, 2^485504240 is an apocalyptic number.

485504240 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 485504240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (634271904).

485504240 is an abundant number, since it is smaller than the sum of its proper divisors (783039568).

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

485504240 is a wasteful number, since it uses less digits than its factorization.

485504240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20346 (or 20340 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 32.

The square root of 485504240 is about 22034.1607509794. The cubic root of 485504240 is about 785.9549901170.

The spelling of 485504240 in words is "four hundred eighty-five million, five hundred four thousand, two hundred forty".