405504005 has 8 divisors (see below), whose sum is σ = 490106400. Its totient is φ = 322068816.

The previous prime is 405503993. The next prime is 405504019. The reversal of 405504005 is 500405504.

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 405504005 - 2²⁸ = 137068549 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 291035 + ... + 292424.

It is an arithmetic number, because the mean of its divisors is an integer number (61263300).

Almost surely, 2^405504005 is an apocalyptic number.

It is an amenable number.

405504005 is a deficient number, since it is larger than the sum of its proper divisors (84602395).

405504005 is a wasteful number, since it uses less digits than its factorization.

405504005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583603.

The product of its (nonzero) digits is 2000, while the sum is 23.

The square root of 405504005 is about 20137.1300090157. The cubic root of 405504005 is about 740.1704045114.

Adding to 405504005 its reverse (500405504), we get a palindrome (905909509).

The spelling of 405504005 in words is "four hundred five million, five hundred four thousand, five".