405883085 has 8 divisors (see below), whose sum is σ = 489876120. Its totient is φ = 322828864.

The previous prime is 405883069. The next prime is 405883087. The reversal of 405883085 is 580388504.

It can be written as a sum of positive squares in 4 ways, for example, as 269156836 + 136726249 = 16406^2 + 11693^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 405883085 - 2⁴ = 405883069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405883087) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233750 + ... + 235479.

It is an arithmetic number, because the mean of its divisors is an integer number (61234515).

Almost surely, 2^405883085 is an apocalyptic number.

It is an amenable number.

405883085 is a deficient number, since it is larger than the sum of its proper divisors (83993035).

405883085 is a wasteful number, since it uses less digits than its factorization.

405883085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469407.

The product of its (nonzero) digits is 153600, while the sum is 41.

The square root of 405883085 is about 20146.5402737046. The cubic root of 405883085 is about 740.4009788136.

The spelling of 405883085 in words is "four hundred five million, eight hundred eighty-three thousand, eighty-five".