485349840 has 80 divisors (see below), whose sum is σ = 1671768000. Its totient is φ = 129426048.

The previous prime is 485349833. The next prime is 485349863. The reversal of 485349840 is 48943584.

It is a happy number.

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

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 (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110190 + ... + 114509.

It is an arithmetic number, because the mean of its divisors is an integer number (20897100).

Almost surely, 2^485349840 is an apocalyptic number.

485349840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

485349840 is an abundant number, since it is smaller than the sum of its proper divisors (1186418160).

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

485349840 is a wasteful number, since it uses less digits than its factorization.

485349840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224721 (or 224709 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The square root of 485349840 is about 22030.6568218018. The cubic root of 485349840 is about 785.8716648463.

The spelling of 485349840 in words is "four hundred eighty-five million, three hundred forty-nine thousand, eight hundred forty".