405422205 has 24 divisors (see below), whose sum is σ = 689084832. Its totient is φ = 203503872.

The previous prime is 405422201. The next prime is 405422221. The reversal of 405422205 is 502224504.

It is a happy number.

It is not a de Polignac number, because 405422205 - 2² = 405422201 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405422201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42427 + ... + 51096.

It is an arithmetic number, because the mean of its divisors is an integer number (28711868).

Almost surely, 2^405422205 is an apocalyptic number.

It is an amenable number.

405422205 is a deficient number, since it is larger than the sum of its proper divisors (283662627).

405422205 is a wasteful number, since it uses less digits than its factorization.

405422205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93565 (or 93548 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 405422205 is about 20135.0988326355. The cubic root of 405422205 is about 740.1206310526.

Adding to 405422205 its reverse (502224504), we get a palindrome (907646709).

It can be divided in two parts, 40 and 5422205, that added together give a palindrome (5422245).

The spelling of 405422205 in words is "four hundred five million, four hundred twenty-two thousand, two hundred five".