405085670 has 16 divisors (see below), whose sum is σ = 795441168. Its totient is φ = 147303840.

The previous prime is 405085669. The next prime is 405085679. The reversal of 405085670 is 76580504.

It is a self number, because there is not a number n which added to its sum of digits gives 405085670.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405085679) 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, 1841189 + ... + 1841408.

It is an arithmetic number, because the mean of its divisors is an integer number (49715073).

Almost surely, 2^405085670 is an apocalyptic number.

405085670 is a deficient number, since it is larger than the sum of its proper divisors (390355498).

405085670 is a wasteful number, since it uses less digits than its factorization.

405085670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3682615.

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 405085670 is about 20126.7401732124. The cubic root of 405085670 is about 739.9157866183.

The spelling of 405085670 in words is "four hundred five million, eighty-five thousand, six hundred seventy".