405105006 has 8 divisors (see below), whose sum is σ = 810210024. Its totient is φ = 135035000.

The previous prime is 405104977. The next prime is 405105007. The reversal of 405105006 is 600501504.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

405105006 is an admirable number.

It is a super-2 number, since 2×405105006² = 328220131772520072, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405105007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33758745 + ... + 33758756.

It is an arithmetic number, because the mean of its divisors is an integer number (101276253).

Almost surely, 2^405105006 is an apocalyptic number.

405105006 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

405105006 is a wasteful number, since it uses less digits than its factorization.

405105006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67517506.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 405105006 is about 20127.2205234603. The cubic root of 405105006 is about 739.9275592589.

The spelling of 405105006 in words is "four hundred five million, one hundred five thousand, six".