405434005 has 8 divisors (see below), whose sum is σ = 487281312. Its totient is φ = 323840208.

The previous prime is 405433991. The next prime is 405434009. The reversal of 405434005 is 500434504.

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 405434005 - 2²¹ = 403336853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405434009) 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, 59839 + ... + 66268.

It is an arithmetic number, because the mean of its divisors is an integer number (60910164).

Almost surely, 2^405434005 is an apocalyptic number.

It is an amenable number.

405434005 is a deficient number, since it is larger than the sum of its proper divisors (81847307).

405434005 is a wasteful number, since it uses less digits than its factorization.

405434005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126755.

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 405434005 is about 20135.3918511659. The cubic root of 405434005 is about 740.1278115002.

Adding to 405434005 its reverse (500434504), we get a palindrome (905868509).

The spelling of 405434005 in words is "four hundred five million, four hundred thirty-four thousand, five".