408785085 has 48 divisors (see below), whose sum is σ = 727024896. Its totient is φ = 212383104.

The previous prime is 408785081. The next prime is 408785087. The reversal of 408785085 is 580587804.

It is not a de Polignac number, because 408785085 - 2² = 408785081 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 408785085.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (408785081) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 733627 + ... + 734183.

It is an arithmetic number, because the mean of its divisors is an integer number (15146352).

Almost surely, 2^408785085 is an apocalyptic number.

408785085 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

408785085 is a deficient number, since it is larger than the sum of its proper divisors (318239811).

408785085 is a wasteful number, since it uses less digits than its factorization.

408785085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 962 (or 959 counting only the distinct ones).

The product of its (nonzero) digits is 358400, while the sum is 45.

The square root of 408785085 is about 20218.4342865614. The cubic root of 408785085 is about 742.1613733237.

The spelling of 408785085 in words is "four hundred eight million, seven hundred eighty-five thousand, eighty-five".