405080205 has 32 divisors (see below), whose sum is σ = 673360128. Its totient is φ = 207782400.

The previous prime is 405080201. The next prime is 405080213. The reversal of 405080205 is 502080504.

It is not a de Polignac number, because 405080205 - 2² = 405080201 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405080201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39027 + ... + 48303.

It is an arithmetic number, because the mean of its divisors is an integer number (21042504).

Almost surely, 2^405080205 is an apocalyptic number.

It is an amenable number.

405080205 is a deficient number, since it is larger than the sum of its proper divisors (268279923).

405080205 is a wasteful number, since it uses less digits than its factorization.

405080205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9397.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 405080205 is about 20126.6044080963. The cubic root of 405080205 is about 739.9124592086.

It can be divided in two parts, 4050 and 80205, that added together give a triangular number (84255 = T₄₁₀).

The spelling of 405080205 in words is "four hundred five million, eighty thousand, two hundred five".